diff --git a/CMakeLists.txt b/CMakeLists.txt
index 069449e4ee81f587493231d3ddd25c85991fa562..26659a90aa7cb5a617f8a27eafd2b1e6d9c85195 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -17,8 +17,10 @@ add_custom_target(check
 add_library(common OBJECT
         src/ErrorHandler.cpp
         src/Message.cpp
-	    src/MessageParser.cpp
+        src/MessageParser.cpp
+        src/ServicePool.cpp
         src/Helpers/CRCHelper.cpp
+        src/Helpers/TimeAndDate.cpp
         src/Helpers/TimeHelper.cpp
         src/Services/EventReportService.cpp
         src/Services/MemoryManagementService.cpp
@@ -26,14 +28,15 @@ add_library(common OBJECT
         src/Services/RequestVerificationService.cpp
         src/Services/TestService.cpp
         src/Services/TimeManagementService.cpp
-    	src/Services/EventActionService.cpp
+        src/Services/EventActionService.cpp
         )
 
 # Specify the .cpp files for the executables
+file(GLOB x86_main_SRC "src/Platform/x86/*.cpp")
 add_executable(ecss_services
         src/main.cpp
         $<TARGET_OBJECTS:common>
-        src/Platform/x86/Service.cpp
+        ${x86_main_SRC}
         )
 
 IF (EXISTS "${PROJECT_SOURCE_DIR}/lib/Catch2/CMakeLists.txt")
diff --git a/README.md b/README.md
index aab7c0ca428d51dcb3da71ce72b472023af475a1..539fa922b1fa02408797a25e22db0cee2bf197c4 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,8 @@
 # ECSS-E-ST-40-71C Services
 
-In this repository you can find the implementation of the ECSS services, based on the ECSS-E-ST-40-71C standard. 
+In this repository you can find the implementation of the ECSS services, based
+on the [ECSS-E-ST-40-71C](https://ecss.nl/standard/ecss-e-st-70-41c-space-engineering-telemetry-and-telecommand-packet-utilization-15-april-2016/)
+standard.
 
 ## Directories
 - **ci**: GitLab CI configuration files
diff --git a/ci/.clang-tidy b/ci/.clang-tidy
index 79406a31501a0c54cd823f6aa9f9d5f56d9d0715..38beddf8e90c12aa96ede94f6d80bf27cc253aef 100644
--- a/ci/.clang-tidy
+++ b/ci/.clang-tidy
@@ -19,7 +19,7 @@ Checks:          >
   performance-*,
   readability-*,
   zircon-*
-WarningsAsErrors: '*,-misc-unused-parameters,-llvm-header-guard,-cppcoreguidelines-pro-type-member-init,-google-runtime-references,-clang-diagnostic-tautological-constant-out-of-range-compare,-readability-redundant-declaration,-modernize-use-equals-default,-fuchsia-statically-constructed-objects,-hicpp-signed-bitwise,-cert-err58-cpp'
+WarningsAsErrors: '*,-misc-unused-parameters,-llvm-header-guard,-cppcoreguidelines-pro-type-member-init,-google-runtime-references,-clang-diagnostic-tautological-constant-out-of-range-compare,-readability-redundant-declaration,-modernize-use-equals-default,-fuchsia-statically-constructed-objects,-hicpp-signed-bitwise,-cert-err58-cpp,-clang-diagnostic-error,-misc-noexcept-move-constructor'
 HeaderFilterRegex: 'ecss-services\/((?!lib\/).)*$'
 AnalyzeTemporaryDtors: false
 ...
diff --git a/ci/vera.profile b/ci/vera.profile
index 4da7dae75b571530a062c8453ffa0f3c6a89781e..2382359f944d16804f95c08abf35c78c0d758ae8 100644
--- a/ci/vera.profile
+++ b/ci/vera.profile
@@ -9,7 +9,6 @@ set rules {
   L006
   T001
   T002
-  T003
   T004
   T005
   T006
diff --git a/inc/ECSS_Definitions.hpp b/inc/ECSS_Definitions.hpp
index 3a2eeedba9ebd9fd6e080c054e485a7936880ae5..1f000979a32969565a7cdee0d7e91f63779da207 100644
--- a/inc/ECSS_Definitions.hpp
+++ b/inc/ECSS_Definitions.hpp
@@ -1,7 +1,6 @@
 #ifndef ECSS_SERVICES_ECSS_DEFINITIONS_H
 #define ECSS_SERVICES_ECSS_DEFINITIONS_H
 
-// Todo: Specify maximum size for regular messages
 #define ECSS_MAX_MESSAGE_SIZE 1024
 
 #define ECSS_MAX_STRING_SIZE 256
diff --git a/inc/ErrorHandler.hpp b/inc/ErrorHandler.hpp
index 25c65960e3e408ca35e5a818794eeaa83f873c70..9864f708b31bc297459627581f2542bb4352fb4e 100644
--- a/inc/ErrorHandler.hpp
+++ b/inc/ErrorHandler.hpp
@@ -1,6 +1,8 @@
 #ifndef PROJECT_ERRORHANDLER_HPP
 #define PROJECT_ERRORHANDLER_HPP
 
+#include <type_traits>
+
 // Forward declaration of the class, since its header file depends on the ErrorHandler
 class Message;
 
@@ -15,20 +17,13 @@ class Message;
 class ErrorHandler {
 private:
 	/**
-	 * Log the error to a logging facility. Currently, this just displays the error on the screen.
-	 *
-	 * @todo This function MUST be moved as platform-dependent code. Currently, it uses g++ specific
-	 * functions for desktop.
+	 * Log the error to a logging facility. Platform-dependent.
 	 */
 	template<typename ErrorType>
 	static void logError(const Message &message, ErrorType errorType);
 
 	/**
-	 * Log an error without a Message to a logging facility. Currently, this just displays the error
-	 * on the screen.
-	 *
-	 * @todo This function MUST be moved as platform-dependent code. Currently, it uses g++ specific
-	 * functions for desktop.
+	 * Log an error without a Message to a logging facility. Platform-dependent.
 	 */
 	template<typename ErrorType>
 	static void logError(ErrorType errorType);
@@ -57,11 +52,24 @@ public:
 		 * An error in the header of a packet makes it unable to be parsed
 		 */
 			UnacceptablePacket = 5,
+		/**
+ 		 * A date that isn't valid according to the Gregorian calendar or cannot be parsed by the
+ 		 * TimeHelper
+ 		 */
+			InvalidDate = 6,
+		/**
+		 * Asked a Message type that doesn't exist
+		 */
+			UnknownMessageType = 7,
 
 		/**
-		 * Asked a Message type that it doesn't exist
+		 * Asked to append unnecessary spare bits
+		 */
+			InvalidSpareBits = 8,
+		/**
+		 * A function received a Message that was not of the correct type
 		 */
-			UnknownMessageType = 6,
+		    OtherMessageType = 9,
 	};
 
 	/**
@@ -165,7 +173,7 @@ public:
 	/**
  	 * Report a failure about the progress of the execution of a request
  	 *
- 	 * Note:This function is different from reportError, because we need one more /p(stepID)
+ 	 * @note This function is different from reportError, because we need one more \p stepID
  	 * to call the proper function for reporting the progress of the execution of a request
  	 *
  	 * @param message The incoming message that prompted the failure
@@ -212,6 +220,33 @@ public:
 			reportError(message, errorCode);
 		}
 	}
+
+	/**
+	 * Convert a parameter given in C++ to an ErrorSource that can be easily used in comparisons.
+	 * @tparam ErrorType One of the enums specified in ErrorHandler.
+	 * @param error An error code of a specific type
+	 * @return The corresponding ErrorSource
+	 */
+	template<typename ErrorType>
+	inline static ErrorSource findErrorSource(ErrorType error) {
+		// Static type checking
+		if (std::is_same<ErrorType, AcceptanceErrorType>()) {
+			return Acceptance;
+		}
+		if (std::is_same<ErrorType, ExecutionStartErrorType>()) {
+			return ExecutionStart;
+		}
+		if (std::is_same<ErrorType, ExecutionProgressErrorType>()) {
+			return ExecutionProgress;
+		}
+		if (std::is_same<ErrorType, ExecutionCompletionErrorType>()) {
+			return ExecutionCompletion;
+		}
+		if (std::is_same<ErrorType, RoutingErrorType>()) {
+			return Routing;
+		}
+		return Internal;
+	}
 };
 
 #endif //PROJECT_ERRORHANDLER_HPP
diff --git a/inc/Helpers/CRCHelper.hpp b/inc/Helpers/CRCHelper.hpp
index d70ca5782b7a33add0110990bd23c0c2253dd1e7..12da516b2d6718d6743b17779c2fcf01dec178cd 100644
--- a/inc/Helpers/CRCHelper.hpp
+++ b/inc/Helpers/CRCHelper.hpp
@@ -20,7 +20,6 @@ class CRCHelper {
 	 */
 
 // TODO: Change this to hardware implementation or a trusted software one
-// TODO: Use CRC with received TC and transmitted TM packets
 public:
 	/**
 	 * Actual CRC calculation function.
diff --git a/inc/Helpers/TimeAndDate.hpp b/inc/Helpers/TimeAndDate.hpp
new file mode 100644
index 0000000000000000000000000000000000000000..8ddc566973bddfbf78c6fa695d141935d12c06d7
--- /dev/null
+++ b/inc/Helpers/TimeAndDate.hpp
@@ -0,0 +1,79 @@
+#ifndef ECSS_SERVICES_TIMEANDDATE_HPP
+#define ECSS_SERVICES_TIMEANDDATE_HPP
+
+#include <cstdint>
+#include "macros.hpp"
+
+/**
+ * A class that represents the time and date.
+ *
+ * @note
+ * This class represents UTC (Coordinated Universal Time) date
+ */
+class TimeAndDate {
+public:
+	uint16_t year;
+	uint8_t month;
+	uint8_t day;
+	uint8_t hour;
+	uint8_t minute;
+	uint8_t second;
+
+	/**
+	 * Assign the instances with the Unix epoch 1/1/1970 00:00:00
+	 */
+	TimeAndDate();
+
+	/**
+	 * @param year the year as it used in Gregorian calendar
+	 * @param month the month as it used in Gregorian calendar
+	 * @param day the day as it used in Gregorian calendar
+	 * @param hour UTC hour in 24 format
+	 * @param minute UTC minutes
+	 * @param second UTC seconds
+	 */
+	TimeAndDate(uint16_t year, uint8_t month, uint8_t day, uint8_t hour, uint8_t minute, uint8_t
+	second);
+
+	/**
+	 * Compare two timestamps.
+	 *
+	 * @param Date the date that will be compared with the pointer `this`
+	 * @return true if the pointer `this` is smaller than \p Date
+	 */
+	bool operator<(const TimeAndDate &Date);
+
+	/**
+	 * Compare two timestamps.
+	 *
+	 * @param Date the date that will be compared with the pointer `this`
+	 * @return true if the pointer `this` is greater than \p Date
+	 */
+	bool operator>(const TimeAndDate &Date);
+
+	/**
+ 	 * Compare two timestamps.
+ 	 *
+ 	 * @param Date the date that will be compared with the pointer `this`
+ 	 * @return true if the pointer `this` is equal to \p Date
+ 	 */
+	bool operator==(const TimeAndDate &Date);
+
+	/**
+	 * Compare two timestamps.
+	 *
+	 * @param Date the date that will be compared with the pointer `this`
+	 * @return true if the pointer `this` is smaller than or equal to \p Date
+	 */
+	bool operator<=(const TimeAndDate &Date);
+
+	/**
+	 * Compare two timestamps.
+	 *
+	 * @param Date the date that will be compared with the pointer `this`
+	 * @return true if the pointer `this` is greater than or equal to \p Date
+	 */
+	bool operator>=(const TimeAndDate &Date);
+};
+
+#endif //ECSS_SERVICES_TIMEANDDATE_HPP
diff --git a/inc/Helpers/TimeHelper.hpp b/inc/Helpers/TimeHelper.hpp
index 8661fff4c05df60a8c43b583bec6a62695f060a7..b9039cf346c410ae15563810f67e39685903716b 100644
--- a/inc/Helpers/TimeHelper.hpp
+++ b/inc/Helpers/TimeHelper.hpp
@@ -3,39 +3,93 @@
 
 #include <cstdint>
 #include <Message.hpp>
+#include "TimeAndDate.hpp"
+
+#define SECONDS_PER_MINUTE 60
+#define SECONDS_PER_HOUR 3600
+#define SECONDS_PER_DAY 86400
 
 /**
  * This class formats the spacecraft time and cooperates closely with the ST[09] time management.
- * The ECSS standard supports two time formats: the CUC and CSD that are described in
- * CCSDS 301.0-B-4 standard
- * The chosen time format is CUC. The reasons for this selection are the followings:
- * 1)It is more flexible from the CSD. The designer is free to decide how much memory will use
- * for the time unit and what that time unit will be(seconds, minutes, hours etc.).
- * 2)It can use TAI(international atomic time) as reference time scale. So there is no need
- * to worry about leap seconds(code UTC-based)
  *
- * Note: The implementation of the time formats are in general RTC-dependent. First, we need to
- * get the time data from the RTC, so we know what time is it and then format it!
+ * The ECSS standard supports two time formats: the CUC and CSD that are described in CCSDS
+ * 301.0-B-4 standard. The chosen time format is CDS and it is UTC-based (UTC: Coordinated
+ * Universal Time). It consists of two main fields: the time code preamble field (P-field) and
+ * the time specification field (T-field). The P-Field is the metadata for the T-Field. The
+ * T-Field is consisted of two segments: 1) the `DAY` and the 2) `ms of day` segments.
+ * The P-field won't be included in the code, because as the ECSS standards claims, it can be
+ * just implicitly declared.
+ *
+ * @note
+ * Since this code is UTC-based, the leap second correction must be made. The leap seconds that
+ * have been occurred between timestamps should be considered if a critical time-difference is
+ * needed
+ *
  */
 class TimeHelper {
 public:
+	static constexpr uint8_t DaysOfMonth[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
+
+	TimeHelper() = default;
+
+	/**
+	 * @param year The year that will be examined if it is a leap year (366 days)
+	 * @return if the \p year is a leap year returns true and if it isn't returns false
+	 */
+	static bool IsLeapYear(uint16_t year);
+
+	/**
+     * Convert UTC date to elapsed seconds since Unix epoch (1/1/1970 00:00:00).
+     *
+     * This is a reimplemented mktime() of <ctime> library in an embedded systems way
+     *
+     * @note
+     * This function can convert UTC dates after 1 January 2019 to elapsed seconds since Unix epoch
+     *
+     * @param TimeInfo the time information/data from the RTC (UTC format)
+     * @return the elapsed seconds between a given UTC date (after the Unix epoch) and Unix epoch
+     * @todo check if we need to change the epoch to the recommended one from the standard, 1
+     * January 1958
+     */
+	static uint32_t utcToSeconds(TimeAndDate &TimeInfo);
+
+	/**
+     * Convert elapsed seconds since Unix epoch to UTC date.
+     *
+     * This is a reimplemented gmtime() of <ctime> library in an embedded systems way
+     *
+     * @note
+     * This function can convert elapsed seconds since Unix epoch to UTC dates after 1 January 2019
+     *
+     * @param seconds elapsed seconds since Unix epoch
+     * @return the UTC date based on the \p seconds
+     * @todo check if we need to change the epoch to the recommended one from the standard, 1
+     * January 1958
+     */
+	static TimeAndDate secondsToUTC(uint32_t seconds);
+
 	/**
-	 * Generate the CUC time format
+	 * Generate the CDS time format (3.3 in CCSDS 301.0-B-4 standard).
 	 *
-	 * @details The CUC time format consists of two main fields: the time code preamble field
-	 * (P-field) and the time specification field(T-field). The P-Field is the metadata for the
-	 * T-Field. The T-Field contains the value of the time unit and the designer decides what the
-	 * time unit will be, so this is a subject for discussion. The recommended time unit from the
-	 * standard is the second and it is probably the best solution for accuracy.
-	 * @param seconds the seconds provided from the RTC. This function in general should have
-	 * parameters corresponding with the RTC. For the time being we assume that the RTC has a
-	 * 32-bit counter that counts seconds(the RTC in Nucleo F103RB!)
- 	 * @todo check if we need milliseconds(fractions of the time unit)
- 	 * @todo the time unit should be declared in the metadata. But how?
- 	 * @todo check if we need to define other epoch than the 1 January 1958
+	 * Converts a UTC date to CDS time format.
+	 *
+	 * @param TimeInfo is the data provided from RTC (UTC)
+	 * @return TimeFormat the CDS time format. More specific, 48 bits are used for the T-field
+	 * (16 for the `DAY` and 32 for the `ms of day`)
  	 * @todo time security for critical time operations
+ 	 * @todo declare the implicit P-field
 	 */
-	static uint64_t implementCUCTimeFormat(uint32_t seconds);
+	static uint64_t generateCDStimeFormat(struct TimeAndDate &TimeInfo);
+
+	/**
+	 * Parse the CDS time format (3.3 in CCSDS 301.0-B-4 standard)
+	 *
+	 * @param data time information provided from the ground segment. The length of the data is a
+	 * fixed size of 48 bits
+	 * @return the UTC date
+	 */
+	static TimeAndDate parseCDStimeFormat(const uint8_t *data);
 };
 
+
 #endif //ECSS_SERVICES_TIMEHELPER_HPP
diff --git a/inc/Message.hpp b/inc/Message.hpp
index 1b1cca380acb2186f35c7d8525a116e1c9c77dc4..3240626189f8848a4147f9e97e9d46399dfaa5fe 100644
--- a/inc/Message.hpp
+++ b/inc/Message.hpp
@@ -7,7 +7,6 @@ class Message;
 
 #include "ECSS_Definitions.hpp"
 #include <cstdint>
-#include <cassert>
 #include <etl/String.hpp>
 #include <etl/wstring.h>
 #include "ErrorHandler.hpp"
@@ -21,7 +20,7 @@ class Message;
  */
 class Message {
 public:
-	Message () = default;
+	Message() = default;
 
 	enum PacketType {
 		TM = 0, // Telemetry
@@ -67,10 +66,22 @@ public:
 	 * Appends the least significant \p numBits from \p data to the message
 	 *
 	 * Note: data MUST NOT contain any information beyond the most significant \p numBits bits
-	 * @todo Error handling for failed asserts
 	 */
 	void appendBits(uint8_t numBits, uint16_t data);
 
+	/**
+	 * Appends the remaining bits to complete a byte, in case the appendBits() is the last call
+	 * and the packet data field isn't integer multiple of bytes
+	 *
+	 * @note Actually we should append the bits so the total length of the packets is an integer
+	 * multiple of the padding word size declared for the application process
+	 * @todo Confirm that the overall packet size is an integer multiple of the padding word size
+	 * declared for every application process
+	 * @todo check if wee need to define the spare field for the telemetry and telecommand
+	 * secondary headers
+	 */
+	void finalize();
+
 	/**
 	 * Appends 1 byte to the message
 	 */
@@ -96,7 +107,7 @@ public:
 	 * @param string The string to insert
 	 */
 	template<const size_t SIZE>
-	void appendString(const String<SIZE> & string);
+	void appendString(const String<SIZE> &string);
 
 	/**
 	 * Reads the next \p numBits bits from the the message in a big-endian format
@@ -272,9 +283,9 @@ public:
 	 * PTC = 7, PFC = 0
 	 */
 	template<const size_t SIZE>
-	void appendOctetString(const String<SIZE> & string) {
+	void appendOctetString(const String<SIZE> &string) {
 		// Make sure that the string is large enough to count
-		assertI(string.size() <= (std::numeric_limits<uint16_t>::max)(),
+		ASSERT_INTERNAL(string.size() <= (std::numeric_limits<uint16_t>::max)(),
 			ErrorHandler::StringTooLarge);
 
 		appendUint16(string.size());
@@ -431,18 +442,50 @@ public:
 	 * Reset the message reading status, and start reading data from it again
 	 */
 	void resetRead();
+
+	/**
+	 * Compare the message type to an expected one. An unexpected message type will throw an
+	 * OtherMessageType error.
+	 *
+	 * @return True if the message is of correct type, false if not
+	 */
+	bool assertType(Message::PacketType expectedPacketType, uint8_t expectedServiceType,
+		uint8_t expectedMessageType) {
+		if (packetType != expectedPacketType || serviceType != expectedServiceType ||
+		    messageType != expectedMessageType) {
+			ErrorHandler::reportInternalError(ErrorHandler::OtherMessageType);
+			return false;
+		}
+
+		return true;
+	}
+
+	/**
+	 * Alias for Message::assertType(Message::TC, \p expectedServiceType, \p
+	 * expectedMessageType)
+	 */
+	bool assertTC(uint8_t expectedServiceType, uint8_t expectedMessageType) {
+		return assertType(TC, expectedServiceType, expectedMessageType);
+	}
+
+	/**
+	 * Alias for Message::assertType(Message::TM, \p expectedServiceType, \p
+	 * expectedMessageType)
+	 */
+	bool assertTM(uint8_t expectedServiceType, uint8_t expectedMessageType) {
+		return assertType(TM, expectedServiceType, expectedMessageType);
+	}
 };
 
 template<const size_t SIZE>
-inline void Message::appendString(const String<SIZE> & string) {
-	assertI(dataSize + string.size() < ECSS_MAX_MESSAGE_SIZE, ErrorHandler::MessageTooLarge);
+inline void Message::appendString(const String<SIZE> &string) {
+	ASSERT_INTERNAL(dataSize + string.size() < ECSS_MAX_MESSAGE_SIZE, ErrorHandler::MessageTooLarge);
 	// TODO: Do we need to keep this check? How does etl::string handle it?
-	assertI(string.size() < string.capacity(), ErrorHandler::StringTooLarge);
+	ASSERT_INTERNAL(string.size() < string.capacity(), ErrorHandler::StringTooLarge);
 
 	memcpy(data + dataSize, string.data(), string.size());
 
 	dataSize += string.size();
 }
 
-
 #endif //ECSS_SERVICES_PACKET_H
diff --git a/inc/MessageParser.hpp b/inc/MessageParser.hpp
index c8c162f0720d1a1e1036eabbd9c038704dce0c58..4d1985b274f049dd325287de6e623b9a85b0ea4b 100644
--- a/inc/MessageParser.hpp
+++ b/inc/MessageParser.hpp
@@ -7,12 +7,6 @@
 /**
  * A generic class responsible for the execution of the incoming telemetry and telecommand
  * packets.
- *
- * @todo Make the connection between the ST[01]-request verification service and the services
- * that initiate it
- * @todo Implement the execute function in the upcoming services or generally in the upcoming
- * activities
- *
  */
 
 class MessageParser {
@@ -21,11 +15,6 @@ public:
 	/**
 	 * It is responsible to call the suitable function that executes the proper service. The way that
 	 * the services are selected is based on the serviceType of the \p message
-	 *
-	 * @todo The implementation of the execute function should correspond to the numbers of the
-	 * services/activities that have been created
-	 * @todo execute() needs to be redefined. The /p message isn't enough to call some
-	 * subservices. More arguments are needed.
 	 */
 	void execute(Message &message);
 
@@ -56,9 +45,6 @@ private:
 	 *
 	 * As specified in section 7.4.4.1 of the standard
 	 *
-	 * @todo Implement the acknowledgement flags
-	 * @todo Store and parse the source ID, if needed
-	 *
 	 * @param data The data of the header (not null-terminated)
 	 * @param length The size of the header
 	 * @param message The Message to modify based on the header
diff --git a/inc/Service.hpp b/inc/Service.hpp
index 0aab624de64f9196d2ddae82ce97d3cb0c738156..fbd1aff83534859397e0cf935601f149e7922872 100644
--- a/inc/Service.hpp
+++ b/inc/Service.hpp
@@ -5,6 +5,8 @@
 #include "Message.hpp"
 #include <iostream> // This file should be removed
 
+class ServicePool;
+
 /**
  * A spacecraft service, as defined in ECSS-E-ST-70-41C
  *
@@ -17,6 +19,10 @@ class Service {
 private:
 	uint16_t messageTypeCounter = 0;
 protected:
+	/**
+	 * The service type of this Service. For example, ST[12]'s serviceType is `12`.
+	 * Specify this value in the constructor of your service.
+	 */
 	uint8_t serviceType{};
 
 	/**
@@ -38,13 +44,48 @@ protected:
 	 * Note: For now, since we don't have any mechanisms to queue messages and send them later,
 	 * we just print the message to the screen
 	 */
-	void storeMessage(const Message &message);
+	void storeMessage(Message &message);
 
 	/**
 	 * This function declared only to remind us that every service must have a function like
 	 * this, but this particular function does actually nothing.
 	 */
 	void execute(Message &message);
+
+	/**
+	 * Default protected constructor for this Service
+	 */
+	Service() = default;
+
+public:
+	/**
+	 * @brief Unimplemented copy constructor
+	 *
+	 * Does not allow Services should be copied. There should be only one instance for each Service.
+	 */
+	Service(Service const &) = delete;
+
+	/**
+	 * Unimplemented assignment operation
+	 *
+	 * Does not allow changing the instances of Services, as Services are singletons.
+	 */
+	void operator=(Service const &) = delete;
+
+	/**
+	 * Default destructor
+	 */
+	~Service() = default;
+
+	/**
+	 * Default move constructor
+	 */
+	Service(Service &&service) noexcept = default;
+
+	/**
+	 * Default move assignment operator
+	 */
+	Service &operator=(Service &&service) noexcept = default;
 };
 
 
diff --git a/inc/ServicePool.hpp b/inc/ServicePool.hpp
new file mode 100644
index 0000000000000000000000000000000000000000..8a1e6035855eea8b35003ff37047ac4bb1b01f06
--- /dev/null
+++ b/inc/ServicePool.hpp
@@ -0,0 +1,49 @@
+#ifndef ECSS_SERVICES_SERVICEPOOL_HPP
+#define ECSS_SERVICES_SERVICEPOOL_HPP
+
+#include "Services/RequestVerificationService.hpp"
+#include "Services/TimeManagementService.hpp"
+#include "Services/EventReportService.hpp"
+#include "Services/EventActionService.hpp"
+#include "Services/ParameterService.hpp"
+#include "Services/TestService.hpp"
+#include "Services/MemoryManagementService.hpp"
+
+/**
+ * Defines a class that contains instances of all Services.
+ *
+ * All Services should be stored here and should not be instantiated in a different way.
+ *
+ * @todo Find a way to disable services which are not used
+ */
+class ServicePool {
+public:
+	RequestVerificationService requestVerification;
+	EventReportService eventReport;
+	MemoryManagementService memoryManagement;
+	TimeManagementService timeManagement;
+	EventActionService eventAction;
+	TestService testService;
+	ParameterService parameterManagement;
+
+	/**
+	 * The default ServicePool constructor
+	 */
+	ServicePool() = default;
+
+	/**
+	 * Reset all the services and their contents/properties to the original values
+	 *
+	 * @note This performs the reset in-place, i.e. no new memory is allocated. As such, all
+	 * Services already stored as values will point to the "new" Services after a reset.
+	 */
+	void reset();
+};
+
+/**
+ * A global variable that defines the basic pool where services can be fetched from
+ */
+extern ServicePool Services;
+
+
+#endif //ECSS_SERVICES_SERVICEPOOL_HPP
diff --git a/inc/Services/ParameterService.hpp b/inc/Services/ParameterService.hpp
index c331ae2743d7ffbd4e137d043889515f491d0372..5672b3c6bbbc9cca8983937c075f43dae6b733d2 100644
--- a/inc/Services/ParameterService.hpp
+++ b/inc/Services/ParameterService.hpp
@@ -2,9 +2,11 @@
 #define ECSS_SERVICES_PARAMETERSERVICE_HPP
 
 #include "Service.hpp"
-// #include "Services/RequestVerificationService.hpp"
+#include "ErrorHandler.hpp"
+#include "etl/map.h"
 
-#define CONFIGLENGTH 5
+// Number of stored parameters. MAX_PARAMS is just a dummy number for now.
+#define MAX_PARAMS 5
 
 /**
  * Implementation of the ST[20] parameter management service,
@@ -18,10 +20,11 @@
  * PTC and PFC for each parameter shall be specified as in
  * ECSS-E-ST-70-41C, chapter 7.3
  */
+
+typedef uint16_t ParamId;  // parameter IDs are given sequentially
 struct Parameter {
 	uint8_t ptc;            // Packet field type code (PTC)
 	uint8_t pfc;            // Packet field format code (PFC)
-	uint16_t paramId;       // Unique ID of the parameter
 
 	uint32_t settingData;
 	// Actual data defining the operation of a peripheral or subsystem.
@@ -34,14 +37,15 @@ struct Parameter {
  * Holds the list with the parameters and provides functions
  * for parameter reporting and modification.
  *
- * @todo Ensure that the parameter list is sorted by ID
+ * The parameter list is stored in a map with the parameter IDs as keys and values
+ * corresponding Parameter structs containing the PTC, PFC and the parameter's value.
  */
 
+
 class ParameterService : public Service {
 private:
-	Parameter paramsList[CONFIGLENGTH];
-	// CONFIGLENGTH is just a dummy number for now, this should be statically set
-	static uint16_t numOfValidIds(Message idMsg);  //count the valid ids in a given TC[20, 1]
+	etl::map<ParamId, Parameter, MAX_PARAMS> paramsList;
+	uint16_t numOfValidIds(Message idMsg);  //count the valid ids in a given TC[20, 1]
 
 public:
 	/**
@@ -54,14 +58,14 @@ public:
 	 * containing the current configuration
 	 * **for the parameters specified in the carried valid IDs**.
 	 *
-	 * No sophisticated error checking for now, just whether the package is of the correct type
-	 * and whether the requested IDs are valid, ignoring the invalid ones. If no IDs are correct,
-	 * the returned message shall be empty.
+	 * No sophisticated error checking for now, just whether the packet is of the correct type
+	 * and whether the requested IDs are valid, ignoring the invalid ones.
+	 * If the packet has an incorrect header, an InternalError::UnacceptablePacket is raised.
+	 * If no IDs are correct, the returned message shall be empty.
 	 *
 	 * @param paramId: a valid TC[20, 1] packet carrying the requested parameter IDs
 	 * @return None (messages are stored using storeMessage())
 	 *
-	 * @todo Generate failure notifs where needed when ST[01] is ready
 	 *
 	 * NOTES:
 	 * Method for valid ID counting is a hack (clones the message and figures out the number
@@ -69,7 +73,7 @@ public:
 	 *
 	 * Everything apart from the setting data is uint16 (setting data are uint32 for now)
 	 */
-	void reportParameterIds(Message paramIds);
+	void reportParameterIds(Message& paramIds);
 
 	/**
 	 * This function receives a TC[20, 3] message and after checking whether its type is correct,
@@ -79,10 +83,9 @@ public:
 	 * @param newParamValues: a valid TC[20, 3] message carrying parameter ID and replacement value
 	 * @return None
 	 *
-	 * @todo Generate failure notifications where needed (eg. when an invalid ID is encountered)
 	 * @todo Use pointers for changing and storing addresses to comply with the standard
 	 */
-	void setParameterIds(Message newParamValues);
+	void setParameterIds(Message& newParamValues);
 
 };
 
diff --git a/inc/Services/RequestVerificationService.hpp b/inc/Services/RequestVerificationService.hpp
index 3f78f83b369b33b73269488b6f70451044f6c729..846695c33cca54c3052bebedf913a34def618104 100644
--- a/inc/Services/RequestVerificationService.hpp
+++ b/inc/Services/RequestVerificationService.hpp
@@ -126,18 +126,9 @@ public:
 	 * way that the subservices are selected is for the time being based on the messageType(class
 	 * member of class Message) of the param message
 	 *
-	 * Note:The functions of this service takes dummy values as arguments for the time being
-	 *
-	 * @todo execute() needs to be redefined. The /p message isn't enough to call some
-	 * subservices. More arguments are needed.
+	 * Note: The functions of this service takes dummy values as arguments for the time being
 	 */
 	void execute(const Message &message);
-
-	/**
-	 * The purpose of this instance is to access the execute function of this service when a
-	 * MessageParser object is created
-	 */
-	static RequestVerificationService instance;
 };
 
 
diff --git a/inc/Services/TestService.hpp b/inc/Services/TestService.hpp
index f06be9693ff82a88faa69ae2b4c1f86a5760a2cf..937c1b97888e3ce1eb84f643b0dc34bd110329bc 100644
--- a/inc/Services/TestService.hpp
+++ b/inc/Services/TestService.hpp
@@ -32,12 +32,6 @@ public:
 	 * @todo Error handling for the switch() in the implementation of this execute function
 	 */
 	void execute(Message &message);
-
-	/**
-	 *  The purpose of this instance is to access the execute function of this service when a
-	 *  MessageParser object is created
-	 */
-	static TestService instance;
 };
 
 
diff --git a/inc/Services/TimeManagementService.hpp b/inc/Services/TimeManagementService.hpp
index d006a5d712b27ffc0218ef31dee469d5bb7d411a..d50b0f74bd9d188183c6704a80c969f64159453c 100644
--- a/inc/Services/TimeManagementService.hpp
+++ b/inc/Services/TimeManagementService.hpp
@@ -1,20 +1,33 @@
 #ifndef ECSS_SERVICES_TIMEMANAGEMENTSERVICE_HPP
 #define ECSS_SERVICES_TIMEMANAGEMENTSERVICE_HPP
 
+
 #include <Service.hpp>
-#include <ctime>
 #include "Helpers/TimeHelper.hpp"
 
 /**
- * Implementation of the ST[09] time management. The current implementation sends
- * a report with the spacecraft time that is formatted according to the CUC time code format
- * (check TimeHelper for the format)
+ * Implementation of the ST[09] time management.
+ *
+ * @notes
+ * There is a noticeable difference between setting the time using GPS and setting the time
+ * using space packets from the ground segment. The GPS module sends the actual time of UTC (123519
+ * is 12:35:19 UTC), while space packets, for time configuration, sends the elapsed time units
+ * (seconds, days depends on the time format) from a specific epoch (1 January 1958 00:00:00). Time
+ * updates using GPS have nothing to do with this service, but for consistency and simplicity we
+ * are trying to set the time with a common way independently of the time source. This is also
+ * the reason that we chose CDS time format (because it is UTC based, check class `TimeHelper`)
+ *
+ * About the GPS receiver, we assume that it outputs NMEA (message format) data
  *
+ * @todo check if we need to follow the standard for time-management or we should send the time-data
+ * like GPS
+ * @todo check if the final GPS receiver support NMEA protocol
  * @todo When the time comes for the application processes we should consider this: All reports
  * generated by the application process that is identified by APID 0 are time reports
  * @todo Declare the time accuracy that the standard claims in the spacecraft
- * time reference section(6.9.3.d,e)
+ * time reference section (6.9.3.d,e)
  */
+
 class TimeManagementService : public Service {
 public:
 	TimeManagementService() {
@@ -22,15 +35,33 @@ public:
 	}
 
 	/**
-	 * TM[9,2] CUC time report
+	 * TM[9,3] CDS time report.
+	 *
+	 * This function sends reports with the spacecraft time that is formatted according to the CDS
+	 * time code format (check class `TimeHelper` for the format)
 	 *
+	 * @param TimeInfo the time information/data from the RTC (UTC format)
 	 * @todo check if we need spacecraft time reference status
 	 * @todo ECSS standard claims: <<The time reports generated by the time reporting subservice
 	 * are spacecraft time packets. A spacecraft time packet does not carry the message type,
 	 * consisting of the service type and message subtype.>> Check if we need to implement that
 	 * or should ignore the standard?
 	 */
-	void cucTimeReport();
+
+	void cdsTimeReport(TimeAndDate &TimeInfo);
+
+	/**
+	 * TC[9,128] CDS time request.
+	 *
+	 * This function is a custom subservice (mission specific) with message type 128 (as defined
+	 * from the standard for custom message types, 5.3.3.1.f) and it parses the data of the
+	 * time-management telecommand packet. This data is formatted according to the CDS time code
+	 * format (check class `TimeHelper` for the format)
+	 *
+	 * @param message the message that will be parsed for its time-data. The data of the \p message
+	 * should be a fixed size of 48 bits
+	 */
+	 TimeAndDate cdsTimeRequest(Message &message);
 };
 
 
diff --git a/inc/macros.hpp b/inc/macros.hpp
index 25a0833b069d95c291b668d7bb2d7eb93d4f79b9..f5205be237b3768b4791b0e7f47ff256b968970d 100644
--- a/inc/macros.hpp
+++ b/inc/macros.hpp
@@ -1,7 +1,18 @@
 #ifndef ECSS_SERVICES_MACROS_HPP
 #define ECSS_SERVICES_MACROS_HPP
 
-#define assertI(cond, error) (ErrorHandler::assertInternal((cond), (error)))
-#define assertR(cond, error) (ErrorHandler::assertRequest((cond), *this, (error)))
+/**
+ * Perform an assertion that, if failed, throws an ErrorHandler::Internal error
+ *
+ * @todo Actually hold program execution or throw an exception here
+ */
+#define ASSERT_INTERNAL(cond, error) (ErrorHandler::assertInternal((cond), (error)))
+
+/**
+ * A wrapper for ErrorHandler::assertRequest() that uses `this` as the Message object.
+ *
+ * Only to be used within the Message class.
+ */
+#define ASSERT_REQUEST(cond, error) (ErrorHandler::assertRequest((cond), *this, (error)))
 
 #endif //ECSS_SERVICES_MACROS_HPP
diff --git a/src/ErrorHandler.cpp b/src/ErrorHandler.cpp
index 45ce0c01808a8a6bb93a98062ca63fd9bbca0b0a..a2f20e7703087577a6b9c1818d75e7618cced2cf 100644
--- a/src/ErrorHandler.cpp
+++ b/src/ErrorHandler.cpp
@@ -1,43 +1,41 @@
 #include <iostream>
 #include <cxxabi.h>
 #include <ErrorHandler.hpp>
+#include <ServicePool.hpp>
 #include "Services/RequestVerificationService.hpp"
 
 
-// TODO: Use service singleton, as soon as singletons are ready
-static RequestVerificationService requestVerificationService;
-
 template<>
 void ErrorHandler::reportError(const Message &message, AcceptanceErrorType errorCode) {
-	requestVerificationService.failAcceptanceVerification(message, errorCode);
+	Services.requestVerification.failAcceptanceVerification(message, errorCode);
 
 	logError(message, errorCode);
 }
 
 template<>
 void ErrorHandler::reportError(const Message &message, ExecutionStartErrorType errorCode) {
-	requestVerificationService.failStartExecutionVerification(message, errorCode);
+	Services.requestVerification.failStartExecutionVerification(message, errorCode);
 
 	logError(message, errorCode);
 }
 
 void ErrorHandler::reportProgressError(const Message &message, ExecutionProgressErrorType
 errorCode, uint8_t stepID) {
-	requestVerificationService.failProgressExecutionVerification(message, errorCode, stepID);
+	Services.requestVerification.failProgressExecutionVerification(message, errorCode, stepID);
 
 	logError(message, errorCode);
 }
 
 template<>
 void ErrorHandler::reportError(const Message &message, ExecutionCompletionErrorType errorCode) {
-	requestVerificationService.failCompletionExecutionVerification(message, errorCode);
+	Services.requestVerification.failCompletionExecutionVerification(message, errorCode);
 
 	logError(message, errorCode);
 }
 
 template<>
 void ErrorHandler::reportError(const Message &message, RoutingErrorType errorCode) {
-	requestVerificationService.failRoutingVerification(message, errorCode);
+	Services.requestVerification.failRoutingVerification(message, errorCode);
 
 	logError(message, errorCode);
 }
@@ -45,26 +43,3 @@ void ErrorHandler::reportError(const Message &message, RoutingErrorType errorCod
 void ErrorHandler::reportInternalError(ErrorHandler::InternalErrorType errorCode) {
 	logError(errorCode);
 }
-
-template<typename ErrorType>
-void ErrorHandler::logError(const Message &message, ErrorType errorType) {
-	std::cerr
-		/*
-		 * Gets the error class name from the template
-		 * Note: This is g++-dependent code and should only be used for debugging.
-		 */
-		<< abi::__cxa_demangle(typeid(ErrorType).name(), nullptr, nullptr, nullptr)
-		<< " Error " << "[" << static_cast<uint16_t>(message.serviceType) << "," <<
-		static_cast<uint16_t>(message.messageType) << "]: " << errorType << std::endl;
-}
-
-template<typename ErrorType>
-void ErrorHandler::logError(ErrorType errorType) {
-	std::cerr
-		/*
-		 * Gets the error class name from the template
-		 * Note: This is g++-dependent code and should only be used for debugging.
-		 */
-		<< abi::__cxa_demangle(typeid(ErrorType).name(), nullptr, nullptr, nullptr)
-		<< " Error: " << errorType << std::endl;
-}
diff --git a/src/Helpers/CRCHelper.cpp b/src/Helpers/CRCHelper.cpp
index e0cd4ebf914ff885c7f50a52aeec4cd3e42c8da8..8361455071673204dcaa88ab4c3f136615127fdf 100644
--- a/src/Helpers/CRCHelper.cpp
+++ b/src/Helpers/CRCHelper.cpp
@@ -9,7 +9,7 @@ uint16_t CRCHelper::calculateCRC(const uint8_t* message, uint32_t length) {
 	// CRC16-CCITT generator polynomial (as specified in standard)
 	uint16_t polynomial = 0x1021u;
 
-	for (int i = 0; i < length; i++) {
+	for (uint32_t i = 0; i < length; i++) {
 		// "copy" (XOR w/ existing contents) the current msg bits into the MSB of the shift register
 		shiftReg ^= (message[i] << 8u);
 
diff --git a/src/Helpers/TimeAndDate.cpp b/src/Helpers/TimeAndDate.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..38280ecb745925f3ce989ad3547b9379bb888f67
--- /dev/null
+++ b/src/Helpers/TimeAndDate.cpp
@@ -0,0 +1,171 @@
+#include "Helpers/TimeHelper.hpp"
+
+
+TimeAndDate::TimeAndDate() {
+	// Unix epoch 1/1/1970
+	year = 1970;
+	month = 1;
+	day = 1;
+	hour = 0;
+	minute = 0;
+	second = 0;
+}
+
+TimeAndDate::TimeAndDate(uint16_t year, uint8_t month, uint8_t day, uint8_t hour, uint8_t minute,
+                         uint8_t second) {
+	// check if the parameters make sense
+	ASSERT_INTERNAL(2019 <= year, ErrorHandler::InternalErrorType::InvalidDate);
+	ASSERT_INTERNAL(1 <= month && month <= 12, ErrorHandler::InternalErrorType::InvalidDate);
+	ASSERT_INTERNAL(1 <= day && day <= 31, ErrorHandler::InternalErrorType::InvalidDate);
+	ASSERT_INTERNAL(0 <= hour && hour <= 24, ErrorHandler::InternalErrorType::InvalidDate);
+	ASSERT_INTERNAL(0 <= minute && minute <= 60, ErrorHandler::InternalErrorType::InvalidDate);
+	ASSERT_INTERNAL(0 <= second && second <= 60, ErrorHandler::InternalErrorType::InvalidDate);
+
+	this->year = year;
+	this->month = month;
+	this->hour = hour;
+	this->day = day;
+	this->minute = minute;
+	this->second = second;
+}
+
+bool TimeAndDate::operator<(const TimeAndDate &Date) {
+	// compare years
+	if (this->year < Date.year) {
+		return true;
+	}
+	if (this->year > Date.year) {
+		return false;
+	}
+
+	// compare months
+	if (this->month < Date.month) {
+		return true;
+	}
+	if (this->month > Date.month) {
+		return false;
+	}
+
+	// compare days
+	if (this->day < Date.day) {
+		return true;
+	}
+	if (this->day > Date.day) {
+		return false;
+	}
+
+	// compare hours
+	if (this->hour < Date.hour) {
+		return true;
+	}
+	if (this->hour > Date.hour) {
+		return false;
+	}
+
+	// compare minutes
+	if (this->minute < Date.minute) {
+		return true;
+	}
+	if (this->minute > Date.minute) {
+		return false;
+	}
+
+	// compare seconds
+	if (this->second < Date.second) {
+		return true;
+	}
+
+	return false;
+}
+
+bool TimeAndDate::operator>(const TimeAndDate &Date) {
+	// compare years
+	if (this->year > Date.year) {
+		return true;
+	}
+	if (this->year < Date.year) {
+		return false;
+	}
+
+	// compare months
+	if (this->month > Date.month) {
+		return true;
+	}
+	if (this->month < Date.month) {
+		return false;
+	}
+
+	// compare days
+	if (this->day > Date.day) {
+		return true;
+	}
+	if (this->day < Date.day) {
+		return false;
+	}
+
+	// compare hours
+	if (this->hour > Date.hour) {
+		return true;
+	}
+	if (this->hour < Date.hour) {
+		return false;
+	}
+
+	// compare minutes
+	if (this->minute > Date.minute) {
+		return true;
+	}
+	if (this->minute < Date.minute) {
+		return false;
+	}
+
+	// compare seconds
+	if (this->second > Date.second) {
+		return true;
+	}
+
+	return false;
+}
+
+bool TimeAndDate::operator==(const TimeAndDate &Date) {
+	// compare years
+	if (this->year != Date.year) {
+		return false;
+	}
+
+	// compare months
+	if (this->month != Date.month) {
+		return false;
+	}
+
+	// compare days
+	if (this->day != Date.day) {
+		return false;
+	}
+
+	// compare hours
+	if (this->hour != Date.hour) {
+		return false;
+	}
+
+	// compare minutes
+	if (this->minute != Date.minute) {
+		return false;
+	}
+
+	// compare seconds
+	if (this->second != Date.second) {
+		return false;
+	}
+
+	return true;
+}
+
+
+bool TimeAndDate::operator<=(const TimeAndDate &Date) {
+	return (*this < Date || *this == Date);
+}
+
+bool TimeAndDate::operator>=(const TimeAndDate &Date) {
+	return (*this > Date || *this == Date);
+}
diff --git a/src/Helpers/TimeHelper.cpp b/src/Helpers/TimeHelper.cpp
index 462c7e8b35ea06bfe440f84b7e3e568e2a7891d2..4b6885dc9b842ade6bb33fd0c5a09270b4df11e4 100644
--- a/src/Helpers/TimeHelper.cpp
+++ b/src/Helpers/TimeHelper.cpp
@@ -1,43 +1,135 @@
 #include "Helpers/TimeHelper.hpp"
 
-uint64_t TimeHelper::implementCUCTimeFormat(uint32_t seconds) {
-	// the total number of octets including the P-field (1 octet) and T-field(4 octets) is 5
-
-	// define the P-field
-	const uint8_t bit0 = 0; // P-field extension(‘zero’: no extension, ‘one’: field is extended)
-	const uint8_t bits1_3 = 1; // Time code identification ( 001 -> 1958 January 1 epoch )
-	const uint8_t bits4_5 = 4 - 1; // Number of octets of the basic time unit minus one
-	const uint8_t bits6_7 = 0; // Number of octets of the fractional time unit
-	const uint8_t pField = (bits6_7 << 6 | bits4_5 << 4 | bits1_3 << 1 | bit0);
-
-	// just a reminder to be careful with the assigned values
-	static_assert(bit0 < 2);
-	static_assert(bits1_3 < 16);
-	static_assert(bits4_5 < 4);
-	static_assert(bits6_7 < 4);
+bool TimeHelper::IsLeapYear(uint16_t year) {
+	if (year % 4 != 0) {
+		return false;
+	}
+	if (year % 100 != 0) {
+		return true;
+	}
+	return (year % 400) == 0;
+}
+
+uint32_t TimeHelper::utcToSeconds(TimeAndDate &TimeInfo) {
+	// the date, that \p TimeInfo represents, should be greater than or equal to 1/1/2019 and the
+	// date should be valid according to Gregorian calendar
+	ASSERT_INTERNAL(TimeInfo.year >= 2019, ErrorHandler::InternalErrorType::InvalidDate);
+	ASSERT_INTERNAL(1 <= TimeInfo.month && TimeInfo.month <= 12,
+	        ErrorHandler::InternalErrorType::InvalidDate);
+	ASSERT_INTERNAL(1 <= TimeInfo.day && TimeInfo.day <= 31,
+	        ErrorHandler::InternalErrorType::InvalidDate);
+	ASSERT_INTERNAL(0 <= TimeInfo.hour && TimeInfo.hour <= 24,
+	        ErrorHandler::InternalErrorType::InvalidDate);
+	ASSERT_INTERNAL(0 <= TimeInfo.minute && TimeInfo.minute <= 60,
+	        ErrorHandler::InternalErrorType::InvalidDate);
+	ASSERT_INTERNAL(0 <= TimeInfo.second && TimeInfo.second <= 60,
+	        ErrorHandler::InternalErrorType::InvalidDate);
+
+	uint32_t secs = 1546300800; // elapsed seconds from Unix epoch until 1/1/2019 00:00:00 (UTC)
+	for (uint16_t y = 2019; y < TimeInfo.year; ++y) {
+		secs += (IsLeapYear(y) ? 366 : 365) * SECONDS_PER_DAY;
+	}
+	for (uint16_t m = 1; m < TimeInfo.month; ++m) {
+		secs += DaysOfMonth[m - 1] * SECONDS_PER_DAY;
+		if (m == 2 && IsLeapYear(TimeInfo.year)) {
+			secs += SECONDS_PER_DAY;
+		}
+	}
+	secs += (TimeInfo.day - 1) * SECONDS_PER_DAY;
+	secs += TimeInfo.hour * SECONDS_PER_HOUR;
+	secs += TimeInfo.minute * SECONDS_PER_MINUTE;
+	secs += TimeInfo.second;
+	return secs;
+}
+
+struct TimeAndDate TimeHelper::secondsToUTC(uint32_t seconds) {
+	// elapsed seconds should be between dates, that are after 1/1/2019 and Unix epoch
+	ASSERT_INTERNAL(seconds >= 1546300800, ErrorHandler::InternalErrorType::InvalidDate);
+
+	seconds -= 1546300800; // elapsed seconds from Unix epoch until 1/1/2019 00:00:00 (UTC)
+	TimeAndDate TimeInfo;
+	TimeInfo.year = 2019;
+	TimeInfo.month = 1;
+	TimeInfo.day = 0;
+	TimeInfo.hour = 0;
+	TimeInfo.minute = 0;
+	TimeInfo.second = 0;
+
+	// calculate years
+	while (seconds >= (IsLeapYear(TimeInfo.year) ? 366 : 365) * SECONDS_PER_DAY) {
+		seconds -= (IsLeapYear(TimeInfo.year) ? 366 : 365) * SECONDS_PER_DAY;
+		TimeInfo.year++;
+	}
+
+	// calculate months
+	uint8_t i = 0;
+	while (seconds >= (DaysOfMonth[i] * SECONDS_PER_DAY)) {
+		TimeInfo.month++;
+		seconds -= (DaysOfMonth[i] * SECONDS_PER_DAY);
+		i++;
+		if (i == 1 && IsLeapYear(TimeInfo.year)) {
+			if (seconds <= (28 * SECONDS_PER_DAY)) {
+				break;
+			}
+			TimeInfo.month++;
+			seconds -= 29 * SECONDS_PER_DAY;
+			i++;
+		}
+	}
+
+	// calculate days
+	TimeInfo.day = seconds / SECONDS_PER_DAY;
+	seconds -= TimeInfo.day * SECONDS_PER_DAY;
+	TimeInfo.day++; // add 1 day because we start count from 1 January (and not 0 January!)
+
+	// calculate hours
+	TimeInfo.hour = seconds / SECONDS_PER_HOUR;
+	seconds -= TimeInfo.hour * SECONDS_PER_HOUR;
+
+	// calculate minutes
+	TimeInfo.minute = seconds / SECONDS_PER_MINUTE;
+	seconds -= TimeInfo.minute * SECONDS_PER_MINUTE;
+
+	// calculate seconds
+	TimeInfo.second = seconds;
 
+	return TimeInfo;
+}
+
+uint64_t TimeHelper::generateCDStimeFormat(TimeAndDate &TimeInfo) {
 	/**
-	 * Define the T-field, the seconds passed from the defined epoch 1 January 1958
-	 * We use 4 octets(32 bits) for the time unit(seconds) because 32 bits for the seconds are
-	 * enough to count 136 years! But if we use 24 bits for the seconds then it will count 0,5
-	 * years and this isn't enough. Remember we can use only integers numbers of octets for the
-	 * time unit(second)
-	 *
-	 * @todo the implementation of the total seconds depends on the structure of the RTC
+	 * Define the T-field. The total number of octets for the implementation of T-field is 6(2 for
+	 * the `DAY` and 4 for the `ms of day`
 	 */
-	uint32_t totalSeconds = seconds;
+
+	uint32_t seconds = utcToSeconds(TimeInfo);
 
 	/**
-	 * Define time format including P-field and T-Field
-	 *
-	 * Notes:
-	 * Only the 40 bits of the 64 will be used for the timeFormat(0-7 : P-field, 8-39: T-field)
-	 *
-	 * Shift operators have high priority. That's why we should do a type-casting first so we
-	 * don't lose valuable bits
-	*/
-	uint64_t timeFormat = (static_cast<uint64_t>(totalSeconds) << 8 | pField);
+	 * The `DAY` segment, 16 bits as defined from standard. Actually the days passed since Unix
+	 * epoch
+	 */
+	auto elapsedDays = static_cast<uint16_t>(seconds / SECONDS_PER_DAY);
 
+	/**
+	 * The `ms of day` segment, 32 bits as defined in standard. The `ms of the day` and DAY`
+	 * should give the time passed since Unix epoch
+	 */
+	auto msOfDay = static_cast<uint32_t >((seconds % SECONDS_PER_DAY) * 1000);
+
+	uint64_t timeFormat = (static_cast<uint64_t>(elapsedDays) << 32 | msOfDay);
 
 	return timeFormat;
 }
+
+TimeAndDate TimeHelper::parseCDStimeFormat(const uint8_t *data) {
+	uint16_t elapsedDays = (static_cast<uint16_t >(data[0])) << 8 | static_cast<uint16_t >
+	(data[1]);
+	uint32_t msOfDay = (static_cast<uint32_t >(data[2])) << 24 |
+	                   (static_cast<uint32_t >(data[3])) << 16 |
+	                   (static_cast<uint32_t >(data[4])) << 8 |
+	                   static_cast<uint32_t >(data[5]);
+
+	uint32_t seconds = elapsedDays * SECONDS_PER_DAY + msOfDay / 1000;
+
+	return secondsToUTC(seconds);
+}
diff --git a/src/Message.cpp b/src/Message.cpp
index 2d32f654ccd26b746380be4e1da50474a961e4c6..409e65e4e18ae303c8cbcac02422172615943184 100644
--- a/src/Message.cpp
+++ b/src/Message.cpp
@@ -10,10 +10,10 @@ Message::Message(uint8_t serviceType, uint8_t messageType, Message::PacketType p
 
 void Message::appendBits(uint8_t numBits, uint16_t data) {
 	// TODO: Add assertion that data does not contain 1s outside of numBits bits
-	assertI(numBits <= 16, ErrorHandler::TooManyBitsAppend);
+	ASSERT_INTERNAL(numBits <= 16, ErrorHandler::TooManyBitsAppend);
 
 	while (numBits > 0) { // For every sequence of 8 bits...
-		assertI(dataSize < ECSS_MAX_MESSAGE_SIZE, ErrorHandler::MessageTooLarge);
+		ASSERT_INTERNAL(dataSize < ECSS_MAX_MESSAGE_SIZE, ErrorHandler::MessageTooLarge);
 
 		if (currentBit + numBits >= 8) {
 			// Will have to shift the bits and insert the next ones later
@@ -36,17 +36,26 @@ void Message::appendBits(uint8_t numBits, uint16_t data) {
 	}
 }
 
+void Message::finalize() {
+	// Define the spare field in telemetry and telecommand user data field (7.4.3.2.c and 7.4.4.2.c)
+
+	if (currentBit != 0) {
+		currentBit = 0;
+		dataSize++;
+	}
+}
+
 void Message::appendByte(uint8_t value) {
-	assertI(dataSize < ECSS_MAX_MESSAGE_SIZE, ErrorHandler::MessageTooLarge);
-	assertI(currentBit == 0, ErrorHandler::ByteBetweenBits);
+	ASSERT_INTERNAL(dataSize < ECSS_MAX_MESSAGE_SIZE, ErrorHandler::MessageTooLarge);
+	ASSERT_INTERNAL(currentBit == 0, ErrorHandler::ByteBetweenBits);
 
 	data[dataSize] = value;
 	dataSize++;
 }
 
 void Message::appendHalfword(uint16_t value) {
-	assertI(dataSize + 2 <= ECSS_MAX_MESSAGE_SIZE, ErrorHandler::MessageTooLarge);
-	assertI(currentBit == 0, ErrorHandler::ByteBetweenBits);
+	ASSERT_INTERNAL(dataSize + 2 <= ECSS_MAX_MESSAGE_SIZE, ErrorHandler::MessageTooLarge);
+	ASSERT_INTERNAL(currentBit == 0, ErrorHandler::ByteBetweenBits);
 
 	data[dataSize] = static_cast<uint8_t>((value >> 8) & 0xFF);
 	data[dataSize + 1] = static_cast<uint8_t>(value & 0xFF);
@@ -55,8 +64,8 @@ void Message::appendHalfword(uint16_t value) {
 }
 
 void Message::appendWord(uint32_t value) {
-	assertI(dataSize + 4 <= ECSS_MAX_MESSAGE_SIZE, ErrorHandler::MessageTooLarge);
-	assertI(currentBit == 0, ErrorHandler::ByteBetweenBits);
+	ASSERT_INTERNAL(dataSize + 4 <= ECSS_MAX_MESSAGE_SIZE, ErrorHandler::MessageTooLarge);
+	ASSERT_INTERNAL(currentBit == 0, ErrorHandler::ByteBetweenBits);
 
 	data[dataSize] = static_cast<uint8_t>((value >> 24) & 0xFF);
 	data[dataSize + 1] = static_cast<uint8_t>((value >> 16) & 0xFF);
@@ -67,13 +76,12 @@ void Message::appendWord(uint32_t value) {
 }
 
 uint16_t Message::readBits(uint8_t numBits) {
-	assertR(numBits <= 16, ErrorHandler::TooManyBitsRead);
-	// TODO: Add assert
+	ASSERT_REQUEST(numBits <= 16, ErrorHandler::TooManyBitsRead);
 
 	uint16_t value = 0x0;
 
 	while (numBits > 0) {
-		assertR(readPosition < ECSS_MAX_MESSAGE_SIZE, ErrorHandler::MessageTooShort);
+		ASSERT_REQUEST(readPosition < ECSS_MAX_MESSAGE_SIZE, ErrorHandler::MessageTooShort);
 
 		if (currentBit + numBits >= 8) {
 			auto bitsToAddNow = static_cast<uint8_t>(8 - currentBit);
@@ -95,7 +103,7 @@ uint16_t Message::readBits(uint8_t numBits) {
 }
 
 uint8_t Message::readByte() {
-	assertR(readPosition < ECSS_MAX_MESSAGE_SIZE, ErrorHandler::MessageTooShort);
+	ASSERT_REQUEST(readPosition < ECSS_MAX_MESSAGE_SIZE, ErrorHandler::MessageTooShort);
 
 	uint8_t value = data[readPosition];
 	readPosition++;
@@ -104,7 +112,7 @@ uint8_t Message::readByte() {
 }
 
 uint16_t Message::readHalfword() {
-	assertR(readPosition + 2 <= ECSS_MAX_MESSAGE_SIZE, ErrorHandler::MessageTooShort);
+	ASSERT_REQUEST(readPosition + 2 <= ECSS_MAX_MESSAGE_SIZE, ErrorHandler::MessageTooShort);
 
 	uint16_t value = (data[readPosition] << 8) | data[readPosition + 1];
 	readPosition += 2;
@@ -113,7 +121,7 @@ uint16_t Message::readHalfword() {
 }
 
 uint32_t Message::readWord() {
-	assertR(readPosition + 4 <= ECSS_MAX_MESSAGE_SIZE, ErrorHandler::MessageTooShort);
+	ASSERT_REQUEST(readPosition + 4 <= ECSS_MAX_MESSAGE_SIZE, ErrorHandler::MessageTooShort);
 
 	uint32_t value = (data[readPosition] << 24) | (data[readPosition + 1] << 16) |
 	                 (data[readPosition + 2] << 8) | data[readPosition + 3];
@@ -123,8 +131,8 @@ uint32_t Message::readWord() {
 }
 
 void Message::readString(char *string, uint8_t size) {
-	assertR(readPosition + size <= ECSS_MAX_MESSAGE_SIZE, ErrorHandler::MessageTooShort);
-	assertR(size < ECSS_MAX_STRING_SIZE, ErrorHandler::StringTooShort);
+	ASSERT_REQUEST(readPosition + size <= ECSS_MAX_MESSAGE_SIZE, ErrorHandler::MessageTooShort);
+	ASSERT_REQUEST(size < ECSS_MAX_STRING_SIZE, ErrorHandler::StringTooShort);
 
 	memcpy(string, data + readPosition, size);
 	string[size] = '\0'; // todo: Use that for now to avoid problems. Later to be removed
@@ -133,8 +141,8 @@ void Message::readString(char *string, uint8_t size) {
 }
 
 void Message::readString(uint8_t *string, uint16_t size) {
-	assertR(readPosition + size <= ECSS_MAX_MESSAGE_SIZE, ErrorHandler::MessageTooShort);
-	assertR(size < ECSS_MAX_STRING_SIZE, ErrorHandler::StringTooShort);
+	ASSERT_REQUEST(readPosition + size <= ECSS_MAX_MESSAGE_SIZE, ErrorHandler::MessageTooShort);
+	ASSERT_REQUEST(size < ECSS_MAX_STRING_SIZE, ErrorHandler::StringTooShort);
 
 	memcpy(string, data + readPosition, size);
 
diff --git a/src/MessageParser.cpp b/src/MessageParser.cpp
index 51451cf7e0a102213df999b4f7acc4b542904ce9..af4988a1a302b2da35eed9d2cbe45e6b1508b706 100644
--- a/src/MessageParser.cpp
+++ b/src/MessageParser.cpp
@@ -1,21 +1,20 @@
 #include <cstring>
 #include <Services/EventActionService.hpp>
+#include <ServicePool.hpp>
 #include "ErrorHandler.hpp"
 #include "MessageParser.hpp"
 #include "macros.hpp"
 #include "Services/TestService.hpp"
 #include "Services/RequestVerificationService.hpp"
 
-TestService TestService::instance;
-RequestVerificationService RequestVerificationService::instance;
 
 void MessageParser::execute(Message &message) {
 	switch (message.serviceType) {
 		case 1:
-			RequestVerificationService::instance.execute(message);
+			Services.requestVerification.execute(message);
 			break;
 		case 17:
-			TestService::instance.execute(message);
+			Services.testService.execute(message);
 			break;
 		default:
 			ErrorHandler::reportInternalError(ErrorHandler::UnknownMessageType);
@@ -24,7 +23,7 @@ void MessageParser::execute(Message &message) {
 }
 
 Message MessageParser::parse(uint8_t *data, uint32_t length) {
-	assertI(length >= 6, ErrorHandler::UnacceptablePacket);
+	ASSERT_INTERNAL(length >= 6, ErrorHandler::UnacceptablePacket);
 
 	uint16_t packetHeaderIdentification = (data[0] << 8) | data[1];
 	uint16_t packetSequenceControl = (data[2] << 8) | data[3];
@@ -38,10 +37,10 @@ Message MessageParser::parse(uint8_t *data, uint32_t length) {
 	auto sequenceFlags = static_cast<uint8_t>(packetSequenceControl >> 14);
 
 	// Returning an internal error, since the Message is not available yet
-	assertI(versionNumber == 0, ErrorHandler::UnacceptablePacket);
-	assertI(secondaryHeaderFlag == 1, ErrorHandler::UnacceptablePacket);
-	assertI(sequenceFlags == 0x3, ErrorHandler::UnacceptablePacket);
-	assertI(packetDataLength == length - 6, ErrorHandler::UnacceptablePacket);
+	ASSERT_INTERNAL(versionNumber == 0, ErrorHandler::UnacceptablePacket);
+	ASSERT_INTERNAL(secondaryHeaderFlag == 1, ErrorHandler::UnacceptablePacket);
+	ASSERT_INTERNAL(sequenceFlags == 0x3, ErrorHandler::UnacceptablePacket);
+	ASSERT_INTERNAL(packetDataLength == length - 6, ErrorHandler::UnacceptablePacket);
 
 	Message message(0, 0, packetType, APID);
 
diff --git a/src/Platform/x86/ErrorHandler.cpp b/src/Platform/x86/ErrorHandler.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..6119440cc09527624c64a4adc517e7d6c551e7ee
--- /dev/null
+++ b/src/Platform/x86/ErrorHandler.cpp
@@ -0,0 +1,40 @@
+/**
+ * This file specifies the logging utilities for x86 desktop platforms. These logging functions
+ * just print the error to screen (via stderr).
+ */
+
+#include <iostream>
+#include <cxxabi.h>
+#include <ErrorHandler.hpp>
+#include <Message.hpp>
+
+// TODO: Find a way to reduce the number of copies of this chunk
+template void ErrorHandler::logError(const Message &, ErrorHandler::AcceptanceErrorType);
+template void ErrorHandler::logError(const Message &, ErrorHandler::ExecutionStartErrorType);
+template void ErrorHandler::logError(const Message &, ErrorHandler::ExecutionProgressErrorType);
+template void ErrorHandler::logError(const Message &, ErrorHandler::ExecutionCompletionErrorType);
+template void ErrorHandler::logError(const Message &, ErrorHandler::RoutingErrorType);
+template void ErrorHandler::logError(ErrorHandler::InternalErrorType);
+
+template<typename ErrorType>
+void ErrorHandler::logError(const Message &message, ErrorType errorType) {
+	std::cerr
+		/*
+		 * Gets the error class name from the template
+		 * Note: This is g++-dependent code and should only be used for debugging.
+		 */
+		<< abi::__cxa_demangle(typeid(ErrorType).name(), nullptr, nullptr, nullptr)
+		<< " Error " << "[" << static_cast<uint16_t>(message.serviceType) << "," <<
+		static_cast<uint16_t>(message.messageType) << "]: " << errorType << std::endl;
+}
+
+template<typename ErrorType>
+void ErrorHandler::logError(ErrorType errorType) {
+	std::cerr
+		/*
+		 * Gets the error class name from the template
+		 * Note: This is g++-dependent code and should only be used for debugging.
+		 */
+		<< abi::__cxa_demangle(typeid(ErrorType).name(), nullptr, nullptr, nullptr)
+		<< " Error: " << errorType << std::endl;
+}
diff --git a/src/Platform/x86/Service.cpp b/src/Platform/x86/Service.cpp
index ff9d9d95de57f749996cb8a2fcd7853cebda7813..6a251f27d1d3a70713833baa949bdcc5a787ec0d 100644
--- a/src/Platform/x86/Service.cpp
+++ b/src/Platform/x86/Service.cpp
@@ -2,7 +2,10 @@
 #include <iomanip>
 #include "Service.hpp"
 
-void Service::storeMessage(const Message &message) {
+void Service::storeMessage(Message &message) {
+	// appends the remaining bits to complete a byte
+	message.finalize();
+
 	// Just print it to the screen
 	std::cout << "New " << ((message.packetType == Message::TM) ? "TM" : "TC") << "["
 	          << std::hex
diff --git a/src/ServicePool.cpp b/src/ServicePool.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..f76e2ee77d066b475c0678baec2159ad3dc1a246
--- /dev/null
+++ b/src/ServicePool.cpp
@@ -0,0 +1,14 @@
+#include "ServicePool.hpp"
+
+ServicePool Services = ServicePool();
+
+void ServicePool::reset() {
+	// Call the destructor
+	this->~ServicePool();
+
+	// Call the constructor
+	// Note the usage of "placement new" that replaces the contents of the Services variable.
+	// This is not dangerous usage, since all the memory that will be used for this has been
+	// statically allocated from before.
+	new (this) ServicePool();
+}
diff --git a/src/Services/EventActionService.cpp b/src/Services/EventActionService.cpp
index b61b16dcff7a92cbbeabfe226e983ee6fdc0eee7..2ace42dd9796cfff95120b189ed95e35e44c9722 100644
--- a/src/Services/EventActionService.cpp
+++ b/src/Services/EventActionService.cpp
@@ -4,149 +4,140 @@
 
 /**
  * @todo: Check if a uint16_t is needed (in case of changing the size of
- * eventActionDefinitionArray
+ * eventActionDefinitionArray)
  */
 void EventActionService::addEventActionDefinitions(Message message) {
 	// TC[19,1]
+	message.assertTC(19, 1);
 
-	if (message.messageType == 1 && message.packetType == Message::TC && message.serviceType ==
-	                                                                     19) {
-		uint16_t index;
-		uint16_t applicationID = message.readEnum16();
-		uint16_t eventDefinitionID = message.readEnum16();
-		bool accepted = true;
+	uint16_t index;
+	uint16_t applicationID = message.readEnum16();
+	uint16_t eventDefinitionID = message.readEnum16();
+	bool accepted = true;
+	for (index = 0; index < ECSS_EVENT_ACTION_STRUCT_ARRAY_SIZE; index++) {
+		if (eventActionDefinitionArray[index].applicationId == applicationID &&
+		    eventActionDefinitionArray[index].eventDefinitionID == eventDefinitionID &&
+		    eventActionDefinitionArray[index].enabled) {
+			// @todo: throw a failed start of execution error
+			accepted = false;
+		}
+	}
+	if (accepted){
 		for (index = 0; index < ECSS_EVENT_ACTION_STRUCT_ARRAY_SIZE; index++) {
-			if (eventActionDefinitionArray[index].applicationId == applicationID &&
-			    eventActionDefinitionArray[index].eventDefinitionID == eventDefinitionID &&
-			    eventActionDefinitionArray[index].enabled) {
-				// @todo: throw a failed start of execution error
-				accepted = false;
+			// @todo: throw an error if it's full
+			if (eventActionDefinitionArray[index].empty) {
+				break;
 			}
 		}
-		if (accepted){
-			for (index = 0; index < ECSS_EVENT_ACTION_STRUCT_ARRAY_SIZE; index++) {
-				// @todo: throw an error if it's full
-				if (eventActionDefinitionArray[index].empty) {
-					break;
-				}
-			}
-			if (index < ECSS_EVENT_ACTION_STRUCT_ARRAY_SIZE) {
-				eventActionDefinitionArray[index].empty = false;
-				eventActionDefinitionArray[index].enabled = true;
-				eventActionDefinitionArray[index].applicationId = applicationID;
-				eventActionDefinitionArray[index].eventDefinitionID = eventDefinitionID;
-				if (message.dataSize - 4 > ECSS_EVENT_SERVICE_STRING_SIZE) {
-					ErrorHandler::reportInternalError(ErrorHandler::InternalErrorType::MessageTooLarge);
-				} else {
-					char data[ECSS_EVENT_SERVICE_STRING_SIZE];
-					message.readString(data, message.dataSize - 4);
-					eventActionDefinitionArray[index].request = String<ECSS_EVENT_SERVICE_STRING_SIZE>(
-						data);
-				}
+		if (index < ECSS_EVENT_ACTION_STRUCT_ARRAY_SIZE) {
+			eventActionDefinitionArray[index].empty = false;
+			eventActionDefinitionArray[index].enabled = true;
+			eventActionDefinitionArray[index].applicationId = applicationID;
+			eventActionDefinitionArray[index].eventDefinitionID = eventDefinitionID;
+			if (message.dataSize - 4 > ECSS_EVENT_SERVICE_STRING_SIZE) {
+				ErrorHandler::reportInternalError(ErrorHandler::InternalErrorType::MessageTooLarge);
+			} else {
+				char data[ECSS_EVENT_SERVICE_STRING_SIZE];
+				message.readString(data, message.dataSize - 4);
+				eventActionDefinitionArray[index].request = String<ECSS_EVENT_SERVICE_STRING_SIZE>(
+					data);
 			}
 		}
 	}
 }
 
 void EventActionService::deleteEventActionDefinitions(Message message) {
-	// TC[19,2]
-	if (message.messageType == 2 && message.packetType == Message::TC && message.serviceType
-	                                                                     == 19) {
-		uint16_t numberOfEventActionDefinitions = message.readUint16();
-		for (uint16_t i = 0; i < numberOfEventActionDefinitions; i++) {
-			uint16_t applicationID = message.readEnum16();
-			uint16_t eventDefinitionID = message.readEnum16();
-			for (uint16_t index = 0; index < ECSS_EVENT_ACTION_STRUCT_ARRAY_SIZE; index++) {
-				if (eventActionDefinitionArray[index].applicationId == applicationID &&
-				    eventActionDefinitionArray[index].eventDefinitionID == eventDefinitionID &&
-				    eventActionDefinitionArray[index].enabled) {
-					eventActionDefinitionArray[index].empty = true;
-					eventActionDefinitionArray[index].eventDefinitionID = 65535;
-					eventActionDefinitionArray[index].request = "";
-					eventActionDefinitionArray[index].applicationId = 0;
-					eventActionDefinitionArray[index].enabled = false;
-				}
-			}
-		}
+	message.assertTC(19, 2);
 
-	}
-}
-
-void EventActionService::deleteAllEventActionDefinitions(Message message) {
-	// TC[19,3]
-	if (message.messageType == 3 && message.packetType == Message::TC && message.serviceType
-	                                                                     == 19) {
-		setEventActionFunctionStatus(false);
+	uint16_t numberOfEventActionDefinitions = message.readUint16();
+	for (uint16_t i = 0; i < numberOfEventActionDefinitions; i++) {
+		uint16_t applicationID = message.readEnum16();
+		uint16_t eventDefinitionID = message.readEnum16();
 		for (uint16_t index = 0; index < ECSS_EVENT_ACTION_STRUCT_ARRAY_SIZE; index++) {
-			if (not eventActionDefinitionArray[index].empty) {
+			if (eventActionDefinitionArray[index].applicationId == applicationID &&
+			    eventActionDefinitionArray[index].eventDefinitionID == eventDefinitionID &&
+			    eventActionDefinitionArray[index].enabled) {
 				eventActionDefinitionArray[index].empty = true;
-				eventActionDefinitionArray[index].enabled = false;
 				eventActionDefinitionArray[index].eventDefinitionID = 65535;
 				eventActionDefinitionArray[index].request = "";
 				eventActionDefinitionArray[index].applicationId = 0;
+				eventActionDefinitionArray[index].enabled = false;
 			}
 		}
 	}
 }
 
+void EventActionService::deleteAllEventActionDefinitions(Message message) {
+	// TC[19,3]
+	message.assertTC(19, 3);
+
+	setEventActionFunctionStatus(false);
+	for (uint16_t index = 0; index < ECSS_EVENT_ACTION_STRUCT_ARRAY_SIZE; index++) {
+		if (not eventActionDefinitionArray[index].empty) {
+			eventActionDefinitionArray[index].empty = true;
+			eventActionDefinitionArray[index].enabled = false;
+			eventActionDefinitionArray[index].eventDefinitionID = 65535;
+			eventActionDefinitionArray[index].request = "";
+			eventActionDefinitionArray[index].applicationId = 0;
+		}
+	}
+}
+
 void EventActionService::enableEventActionDefinitions(Message message) {
 	// TC[19,4]
-	if (message.messageType == 4 && message.packetType == Message::TC && message.serviceType
-	                                                                     == 19) {
-		uint16_t numberOfEventActionDefinitions = message.readUint16();
-		if (numberOfEventActionDefinitions != 0){
-			for (uint16_t i = 0; i < numberOfEventActionDefinitions; i++) {
-				uint16_t applicationID = message.readEnum16();
-				uint16_t eventDefinitionID = message.readEnum16();
-				for (uint16_t index = 0; index < ECSS_EVENT_ACTION_STRUCT_ARRAY_SIZE; index++) {
-					if (eventActionDefinitionArray[index].applicationId == applicationID &&
-					    eventActionDefinitionArray[index].eventDefinitionID == eventDefinitionID) {
-						eventActionDefinitionArray[index].enabled = true;
-					}
-				}
-			}
-		} else {
+	message.assertTC(19, 4);
+
+	uint16_t numberOfEventActionDefinitions = message.readUint16();
+	if (numberOfEventActionDefinitions != 0){
+		for (uint16_t i = 0; i < numberOfEventActionDefinitions; i++) {
+			uint16_t applicationID = message.readEnum16();
+			uint16_t eventDefinitionID = message.readEnum16();
 			for (uint16_t index = 0; index < ECSS_EVENT_ACTION_STRUCT_ARRAY_SIZE; index++) {
-				if (not eventActionDefinitionArray[index].empty){
+				if (eventActionDefinitionArray[index].applicationId == applicationID &&
+				    eventActionDefinitionArray[index].eventDefinitionID == eventDefinitionID) {
 					eventActionDefinitionArray[index].enabled = true;
 				}
 			}
 		}
+	} else {
+		for (uint16_t index = 0; index < ECSS_EVENT_ACTION_STRUCT_ARRAY_SIZE; index++) {
+			if (not eventActionDefinitionArray[index].empty){
+				eventActionDefinitionArray[index].enabled = true;
+			}
+		}
 	}
 }
 
 void EventActionService::disableEventActionDefinitions(Message message) {
 	// TC[19,5]
-	if (message.messageType == 5 && message.packetType == Message::TC && message.serviceType
-	                                                                     == 19) {
-		uint16_t numberOfEventActionDefinitions = message.readUint16();
-		if (numberOfEventActionDefinitions != 0){
-			for (uint16_t i = 0; i < numberOfEventActionDefinitions; i++) {
-				uint16_t applicationID = message.readEnum16();
-				uint16_t eventDefinitionID = message.readEnum16();
-				for (uint16_t index = 0; index < ECSS_EVENT_ACTION_STRUCT_ARRAY_SIZE; index++) {
-					if (eventActionDefinitionArray[index].applicationId == applicationID &&
-					    eventActionDefinitionArray[index].eventDefinitionID == eventDefinitionID) {
-						eventActionDefinitionArray[index].enabled = false;
-					}
-				}
-			}
-		} else {
+	message.assertTC(19, 5);
+
+	uint16_t numberOfEventActionDefinitions = message.readUint16();
+	if (numberOfEventActionDefinitions != 0){
+		for (uint16_t i = 0; i < numberOfEventActionDefinitions; i++) {
+			uint16_t applicationID = message.readEnum16();
+			uint16_t eventDefinitionID = message.readEnum16();
 			for (uint16_t index = 0; index < ECSS_EVENT_ACTION_STRUCT_ARRAY_SIZE; index++) {
-				if (not eventActionDefinitionArray[index].empty){
+				if (eventActionDefinitionArray[index].applicationId == applicationID &&
+				    eventActionDefinitionArray[index].eventDefinitionID == eventDefinitionID) {
 					eventActionDefinitionArray[index].enabled = false;
 				}
 			}
 		}
+	} else {
+		for (uint16_t index = 0; index < ECSS_EVENT_ACTION_STRUCT_ARRAY_SIZE; index++) {
+			if (not eventActionDefinitionArray[index].empty){
+				eventActionDefinitionArray[index].enabled = false;
+			}
+		}
 	}
 }
 
 void EventActionService::requestEventActionDefinitionStatus(Message message) {
 	// TC[19,6]
-	if (message.messageType == 6 && message.packetType == Message::TC && message.serviceType
-	                                                                     == 19) {
-		eventActionStatusReport();
-	}
+	message.assertTC(19, 6);
+
+	eventActionStatusReport();
 }
 
 void EventActionService::eventActionStatusReport() {
@@ -171,29 +162,25 @@ void EventActionService::eventActionStatusReport() {
 
 void EventActionService::enableEventActionFunction(Message message) {
 	// TC[19,8]
-	if (message.messageType == 8 && message.packetType == Message::TC && message.serviceType
-	                                                                     == 19) {
-		setEventActionFunctionStatus(true);
-	}
+	message.assertTC(19, 8);
+
+	setEventActionFunctionStatus(true);
 }
 
 void EventActionService::disableEventActionFunction(Message message) {
 	// TC[19,9]
-	if (message.messageType == 9 && message.packetType == Message::TC && message.serviceType
-	                                                                     == 19) {
-		setEventActionFunctionStatus(false);
-	}
+	message.assertTC(19, 9);
+
+	setEventActionFunctionStatus(false);
 }
 
-// Should I use the name execute here instead of executeAction?
-// Should I use applicationID too?
+// TODO: Should I use applicationID too?
 void EventActionService::executeAction(uint16_t eventID) {
 	// Custom function
 	if (eventActionFunctionStatus) {
 		for (uint16_t i = 0; i < ECSS_EVENT_ACTION_STRUCT_ARRAY_SIZE; i++) {
 			if (not eventActionDefinitionArray[i].empty &&
-			    eventActionDefinitionArray[i].enabled ==
-			    true) {
+			    eventActionDefinitionArray[i].enabled) {
 				if (eventActionDefinitionArray[i].eventDefinitionID == eventID) {
 					MessageParser messageParser;
 					Message message = messageParser.parseRequestTC(
diff --git a/src/Services/EventReportService.cpp b/src/Services/EventReportService.cpp
index 162b4b2349e6f5a14f264d1cf5a027580282c960..f537f32988fe319ffb79f46f5985656f09868241 100644
--- a/src/Services/EventReportService.cpp
+++ b/src/Services/EventReportService.cpp
@@ -71,51 +71,49 @@ EventReportService::highSeverityAnomalyReport(Event eventID, const String<64> &
 
 void EventReportService::enableReportGeneration(Message message) {
 	// TC[5,5]
-	if (message.serviceType == 5 && message.packetType == Message::TC && message.messageType == 5) {
-		/**
-		* @todo: Report an error if length > numberOfEvents
-		*/
-		uint16_t length = message.readUint16();
-		Event eventID[length];
+	message.assertTC(5, 5);
+
+	/**
+	* @todo: Report an error if length > numberOfEvents
+	*/
+	uint16_t length = message.readUint16();
+	Event eventID[length];
+	for (uint16_t i = 0; i < length; i++) {
+		eventID[i] = static_cast<Event >(message.readEnum16());
+	}
+	if (length <= numberOfEvents) {
 		for (uint16_t i = 0; i < length; i++) {
-			eventID[i] = static_cast<Event >(message.readEnum16());
+			stateOfEvents[static_cast<uint16_t> (eventID[i])] = true;
 		}
-		if (length <= numberOfEvents) {
-			for (uint16_t i = 0; i < length; i++) {
-				stateOfEvents[static_cast<uint16_t> (eventID[i])] = true;
-			}
-		}
-		disabledEventsCount = stateOfEvents.size() - stateOfEvents.count();
 	}
+	disabledEventsCount = stateOfEvents.size() - stateOfEvents.count();
 }
 
 void EventReportService::disableReportGeneration(Message message) {
 	// TC[5,6]
-	if (message.serviceType == 5 && message.packetType == Message::TC && message.messageType
-	                                                                     == 6) {
-		/**
-		* @todo: Report an error if length > numberOfEvents
-		*/
-		uint16_t length = message.readUint16();
-		Event eventID[length];
+	message.assertTC(5, 6);
+
+	/**
+	* @todo: Report an error if length > numberOfEvents
+	*/
+	uint16_t length = message.readUint16();
+	Event eventID[length];
+	for (uint16_t i = 0; i < length; i++) {
+		eventID[i] = static_cast<Event >(message.readEnum16());
+	}
+	if (length <= numberOfEvents) {
 		for (uint16_t i = 0; i < length; i++) {
-			eventID[i] = static_cast<Event >(message.readEnum16());
-		}
-		if (length <= numberOfEvents) {
-			for (uint16_t i = 0; i < length; i++) {
-				stateOfEvents[static_cast<uint16_t> (eventID[i])] = false;
-			}
+			stateOfEvents[static_cast<uint16_t> (eventID[i])] = false;
 		}
-		disabledEventsCount = stateOfEvents.size() - stateOfEvents.count();
 	}
+	disabledEventsCount = stateOfEvents.size() - stateOfEvents.count();
 }
 
 void EventReportService::requestListOfDisabledEvents(Message message) {
 	// TC[5,7]
-	// I think this is all that is needed here.
-	if (message.serviceType == 5 && message.packetType == Message::TC && message.messageType == 7) {
-		listOfDisabledEventsReport();
-	}
+	message.assertTC(5, 7);
+
+	listOfDisabledEventsReport();
 }
 
 void EventReportService::listOfDisabledEventsReport() {
@@ -125,7 +123,7 @@ void EventReportService::listOfDisabledEventsReport() {
 	uint16_t numberOfDisabledEvents = stateOfEvents.size() - stateOfEvents.count();
 	report.appendHalfword(numberOfDisabledEvents);
 	for (uint16_t i = 0; i < stateOfEvents.size(); i++) {
-		if (stateOfEvents[i] == 0) {
+		if (not stateOfEvents[i]) {
 			report.appendEnum16(i);
 		}
 	}
diff --git a/src/Services/MemoryManagementService.cpp b/src/Services/MemoryManagementService.cpp
index f904291c44b171161064a131300c79847b785346..c29c8fc1fc6a60efda6386a10d20c733d7ad78b2 100644
--- a/src/Services/MemoryManagementService.cpp
+++ b/src/Services/MemoryManagementService.cpp
@@ -15,7 +15,7 @@ MemoryManagementService::RawDataMemoryManagement::RawDataMemoryManagement(
 // Function declarations for the raw data memory management subservice
 void MemoryManagementService::RawDataMemoryManagement::loadRawData(Message &request) {
 	/**
-	 * Bare in mind that there is currently no error checking for invalid parameters.
+	 * Bear in mind that there is currently no error checking for invalid parameters.
 	 * A future version will include error checking and the corresponding error report/notification,
 	 * as the manual implies.
 	 *
@@ -23,8 +23,7 @@ void MemoryManagementService::RawDataMemoryManagement::loadRawData(Message &requ
 	 * @todo Add failure reporting
 	 */
 	// Check if we have the correct packet
-	assert(request.serviceType == 6);
-	assert(request.messageType == 2);
+	request.assertTC(6, 2);
 
 	// Read the memory ID from the request
 	auto memoryID = MemoryManagementService::MemoryID(request.readEnum8());
@@ -74,8 +73,7 @@ void MemoryManagementService::RawDataMemoryManagement::loadRawData(Message &requ
 
 void MemoryManagementService::RawDataMemoryManagement::dumpRawData(Message &request) {
 	// Check if we have the correct packet
-	assert(request.serviceType == 6);
-	assert(request.messageType == 5);
+	request.assertTC(6, 5);
 
 	// Create the report message object of telemetry message subtype 6
 	Message report = mainService.createTM(6);
@@ -124,8 +122,7 @@ void MemoryManagementService::RawDataMemoryManagement::dumpRawData(Message &requ
 
 void MemoryManagementService::RawDataMemoryManagement::checkRawData(Message &request) {
 	// Check if we have the correct packet
-	assert(request.serviceType == 6);
-	assert(request.messageType == 9);
+	request.assertTC(6, 9);
 
 	// Create the report message object of telemetry message subtype 10
 	Message report = mainService.createTM(10);
diff --git a/src/Services/ParameterService.cpp b/src/Services/ParameterService.cpp
index bf19881992e6265b8254ae0c09bc118a665a780f..b32fa5b589adf76d9910c7fd3ca1c3aa33803f38 100644
--- a/src/Services/ParameterService.cpp
+++ b/src/Services/ParameterService.cpp
@@ -2,13 +2,9 @@
 
 #define DEMOMODE
 
-#ifdef DEMOMODE
-
 #include <ctime>
 #include <cstdlib>
 
-#endif
-
 ParameterService::ParameterService() {
 #ifdef DEMOMODE
 	// Test code, setting up some of the parameter fields
@@ -16,56 +12,87 @@ ParameterService::ParameterService() {
 	time_t currTime = time(nullptr);
 	struct tm *today = localtime(&currTime);
 
-	paramsList[0].paramId = 0;                     // random parameter ID
-	paramsList[0].settingData = today->tm_hour;    // the current hour
-	paramsList[0].ptc = 3;                         // unsigned int
-	paramsList[0].pfc = 14;                        // 32 bits
+	Parameter test1, test2;
+
+	test1.settingData = today->tm_hour;    // the current hour
+	test1.ptc = 3;                         // unsigned int
+	test1.pfc = 14;                        // 32 bits
+
+	test2.settingData = today->tm_min;     // the current minute
+	test2.ptc = 3;                         // unsigned int
+	test2.pfc = 14;                        // 32 bits
+
+	// MAKE SURE THE IDS ARE UNIQUE WHEN INSERTING!
+	/**
+	 * @todo: Make a separate insert() function for parameter insertion to protect from blunders
+	 * if needed to
+	 */
+
+	paramsList.insert(std::make_pair(0, test1));
+	paramsList.insert(std::make_pair(1, test2));
 
-	paramsList[1].paramId = 1;                     // random parameter ID
-	paramsList[1].settingData = today->tm_min;     // the current minute
-	paramsList[1].ptc = 3;                         // unsigned int
-	paramsList[1].pfc = 14;                        // 32 bits
 #endif
 }
 
-void ParameterService::reportParameterIds(Message paramIds) {
+void ParameterService::reportParameterIds(Message& paramIds) {
+	paramIds.assertTC(20, 1);
 	Message reqParam(20, 2, Message::TM, 1);    // empty TM[20, 2] parameter report message
 
-	if (paramIds.packetType == Message::TC && paramIds.serviceType == 20 &&
-	    paramIds.messageType == 1) {
-		uint16_t ids = paramIds.readUint16();
-		reqParam.appendUint16(numOfValidIds(paramIds));   // include the number of valid IDs
-
-		for (int i = 0; i < ids; i++) {
-			uint16_t currId = paramIds.readUint16();      // current ID to be appended
-
-			if (currId < CONFIGLENGTH) {  // check to prevent out-of-bounds access due to invalid id
-				reqParam.appendUint16(currId);
-				reqParam.appendUint32(paramsList[currId].settingData);
-			} else {
-								// generate failure of execution notification for ST[06]
-				continue;       //ignore the invalid ID
-			}
+	paramIds.resetRead();  // since we're passing a reference, the reading position shall be reset
+	// to its default before any read operations (to ensure the correct data is being read)
+
+	// assertion: correct message, packet and service type (at failure throws an
+	// InternalError::UnacceptablePacket)
+	ErrorHandler::assertRequest(paramIds.packetType == Message::TC, paramIds,
+	                            ErrorHandler::AcceptanceErrorType::UnacceptableMessage);
+	ErrorHandler::assertRequest(paramIds.messageType == 1, paramIds,
+	                            ErrorHandler::AcceptanceErrorType::UnacceptableMessage);
+	ErrorHandler::assertRequest(paramIds.serviceType == 20, paramIds,
+	                            ErrorHandler::AcceptanceErrorType::UnacceptableMessage);
+
+	uint16_t ids = paramIds.readUint16();
+	reqParam.appendUint16(numOfValidIds(paramIds));   // include the number of valid IDs
+
+	for (int i = 0; i < ids; i++) {
+		uint16_t currId = paramIds.readUint16();      // current ID to be appended
+
+		if (paramsList.find(currId) != paramsList.end()) {
+			reqParam.appendUint16(currId);
+			reqParam.appendUint32(paramsList[currId].settingData);
+		} else {
+			ErrorHandler::reportError(paramIds,
+				ErrorHandler::ExecutionStartErrorType::UnknownExecutionStartError);
+			continue;  // generate failed start of execution notification & ignore
 		}
 	}
 
 	storeMessage(reqParam);
 }
 
-void ParameterService::setParameterIds(Message newParamValues) {
-	if (newParamValues.packetType == Message::TC && newParamValues.serviceType == 20 &&
-	newParamValues.messageType == 3) {
-		uint16_t ids = newParamValues.readUint16();  //get number of ID's
+void ParameterService::setParameterIds(Message& newParamValues) {
+	newParamValues.assertTC(20, 3);
 
-		for (int i = 0; i < ids; i++) {
-			uint16_t currId = newParamValues.readUint16();
+	// assertion: correct message, packet and service type (at failure throws an
+	// InternalError::UnacceptablePacket which gets logged)
 
-			if (currId < CONFIGLENGTH) {
-				paramsList[currId].settingData = newParamValues.readUint32();
-			} else {
-								// generate failure of execution notification for ST[06]
-				continue;       // ignore the invalid ID
-			}
+	ErrorHandler::assertRequest(newParamValues.packetType == Message::TC, newParamValues,
+		ErrorHandler::AcceptanceErrorType::UnacceptableMessage);
+	ErrorHandler::assertRequest(newParamValues.messageType == 3, newParamValues,
+		ErrorHandler::AcceptanceErrorType::UnacceptableMessage);
+	ErrorHandler::assertRequest(newParamValues.serviceType == 20, newParamValues,
+		ErrorHandler::AcceptanceErrorType::UnacceptableMessage);
+
+	uint16_t ids = newParamValues.readUint16();  //get number of ID's
+
+	for (int i = 0; i < ids; i++) {
+		uint16_t currId = newParamValues.readUint16();
+
+		if (paramsList.find(currId) != paramsList.end()) {
+			paramsList[currId].settingData = newParamValues.readUint32();
+		} else {
+			ErrorHandler::reportError(newParamValues,
+				ErrorHandler::ExecutionStartErrorType::UnknownExecutionStartError);
+			continue;   // generate failed start of execution notification & ignore
 		}
 	}
 }
@@ -85,7 +112,7 @@ uint16_t ParameterService::numOfValidIds(Message idMsg) {
 			idMsg.readUint32();   //skip the 32bit settings blocks, we need only the IDs
 		}
 
-		if (currId < CONFIGLENGTH) {
+		if (paramsList.find(currId) != paramsList.end()) {
 			validIds++;
 		}
 	}
diff --git a/src/Services/RequestVerificationService.cpp b/src/Services/RequestVerificationService.cpp
index 768971daf89b7388075adad9f3e6a471b0795e0c..465b1c5635ed2ac2164433cf282defa377e7b838 100644
--- a/src/Services/RequestVerificationService.cpp
+++ b/src/Services/RequestVerificationService.cpp
@@ -152,7 +152,8 @@ RequestVerificationService::failRoutingVerification(const Message &request,
 	storeMessage(report);
 }
 
-
+// TODO: This function should not be here. These are TM messages, but `execute` should accept a
+// TC message.
 void RequestVerificationService::execute(const Message &message) {
 	switch (message.messageType) {
 		case 1:
diff --git a/src/Services/TestService.cpp b/src/Services/TestService.cpp
index 2584c75cb529826e3653a56cda8eb33d114933be..224c2614d6a29742bb57162e1d96669bdb3ffa21 100644
--- a/src/Services/TestService.cpp
+++ b/src/Services/TestService.cpp
@@ -1,6 +1,7 @@
 #include "Services/TestService.hpp"
 
 void TestService::areYouAlive(Message &request) {
+	request.assertTC(17, 1);
 	// TM[17,2] are-you-alive connection test report
 	Message report = createTM(2);
 
@@ -8,6 +9,7 @@ void TestService::areYouAlive(Message &request) {
 }
 
 void TestService::onBoardConnection(Message &request) {
+	request.assertTC(17, 3);
 	// TM[17,4] on-board connection test report
 	Message report = createTM(4);
 
diff --git a/src/Services/TimeManagementService.cpp b/src/Services/TimeManagementService.cpp
index 2b3feb68aa059b7131863d84cd2d6e79d8328fa1..c6f922953ba4b434dd8a2b6461f5eab05d435aea 100644
--- a/src/Services/TimeManagementService.cpp
+++ b/src/Services/TimeManagementService.cpp
@@ -1,20 +1,27 @@
 #include "Services/TimeManagementService.hpp"
 
-void TimeManagementService::cucTimeReport() {
-	// TM[9,2] CUC time report
+void TimeManagementService::cdsTimeReport(TimeAndDate &TimeInfo) {
+	// TM[9,3] CDS time report
 
-	Message timeReport = createTM(2);
+	Message timeReport = createTM(3);
 
-	/**
-	 * For the time being we will use C++ functions to get a time value, but this will change
-	 * when the RTC will be implemented
-	 */
-	uint32_t seconds;
-	seconds = time(nullptr); // seconds have passed since 00:00:00 GMT, Jan 1, 1970
-	uint64_t timeFormat = TimeHelper::implementCUCTimeFormat(seconds); // store the return value
+	uint64_t timeFormat = TimeHelper::generateCDStimeFormat(TimeInfo);
 
-	timeReport.appendByte(timeFormat); // append the P-field
-	timeReport.appendWord(timeFormat >> 8); // append the T-field
+	timeReport.appendHalfword(static_cast<uint16_t >(timeFormat >> 32));
+	timeReport.appendWord(static_cast<uint32_t >(timeFormat));
 
 	storeMessage(timeReport);
 }
+
+TimeAndDate TimeManagementService::cdsTimeRequest(Message &message) {
+	// TC[9,128] CDS time request
+	message.assertTC(9, 128);
+
+	// check if we have the correct size of the data. The size should be 6 (48 bits)
+	ErrorHandler::assertRequest(message.dataSize == 6, message,
+	                            ErrorHandler::AcceptanceErrorType::UnacceptableMessage);
+
+	TimeAndDate timeInfo = TimeHelper::parseCDStimeFormat(message.data);
+
+	return timeInfo;
+}
diff --git a/src/main.cpp b/src/main.cpp
index ea2a99af0ce752e6fdf312071f2970f1ce3505fb..5615e2641d4329f20a94335f149b62b05f9279df 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,4 +1,5 @@
 #include <iostream>
+#include <ServicePool.hpp>
 #include "Helpers/CRCHelper.hpp"
 #include "Helpers/TimeHelper.hpp"
 #include "Services/TestService.hpp"
@@ -35,7 +36,7 @@ int main() {
 	std::cout << packet.readFloat() << " " << std::dec << packet.readSint32() << std::endl;
 
 	// ST[17] test
-	TestService testService;
+	TestService & testService = Services.testService;
 	Message receivedPacket = Message(17, 1, Message::TC, 1);
 	testService.areYouAlive(receivedPacket);
 	receivedPacket = Message(17, 3, Message::TC, 1);
@@ -44,7 +45,7 @@ int main() {
 
 
 	// ST[20] test
-	ParameterService paramService;
+	ParameterService & paramService = Services.parameterManagement;
 
 	// Test code for reportParameter
 	Message sentPacket = Message(20, 1, Message::TC, 1);  //application id is a dummy number (1)
@@ -72,7 +73,7 @@ int main() {
 	*(pStr + 1) = 'G';
 	*(pStr + 2) = '\0';
 
-	MemoryManagementService memMangService;
+	MemoryManagementService & memMangService = Services.memoryManagement;
 	Message rcvPack = Message(6, 5, Message::TC, 1);
 	rcvPack.appendEnum8(MemoryManagementService::MemoryID::EXTERNAL); // Memory ID
 	rcvPack.appendUint16(3); // Iteration count
@@ -112,7 +113,7 @@ int main() {
 
 	// ST[01] test
 
-	RequestVerificationService reqVerifService;
+	RequestVerificationService & reqVerifService = Services.requestVerification;
 
 	Message receivedMessage = Message(1, 1, Message::TC, 3);
 	reqVerifService.successAcceptanceVerification(receivedMessage);
@@ -196,14 +197,17 @@ int main() {
 	errorMessage.appendBits(2, 7);
 	errorMessage.appendByte(15);
 
-
-	// TimeHelper test
-	uint64_t test = TimeHelper::implementCUCTimeFormat(1200);
-	std::cout << "\n" << test << "\n";
-
 	// ST[09] test
-	TimeManagementService timeReport;
-	timeReport.cucTimeReport();
+	TimeManagementService & timeReport = Services.timeManagement;
+	TimeAndDate timeInfo;
+	// 10/04/1998 10:15:00
+	timeInfo.year = 1998;
+	timeInfo.month = 4;
+	timeInfo.day = 10;
+	timeInfo.hour = 10;
+	timeInfo.minute = 15;
+	timeInfo.second = 0;
+	timeReport.cdsTimeReport(timeInfo);
 
 	// ST[05] (5,5 to 5,8) test [works]
 	EventReportService::Event eventIDs[] = {EventReportService::HighSeverityUnknownEvent,
@@ -226,7 +230,7 @@ int main() {
 
 	// ST[19] test
 
-	EventActionService eventActionService;
+	EventActionService & eventActionService = Services.eventAction;
 	Message eventActionDefinition(19, 1, Message::TC, 1);
 	eventActionDefinition.appendEnum16(0);
 	eventActionDefinition.appendEnum16(2);
diff --git a/test/Helpers/TimeAndDate.cpp b/test/Helpers/TimeAndDate.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..44d1c43938ee20b9e2de6f3d040b3dba2b7a07a2
--- /dev/null
+++ b/test/Helpers/TimeAndDate.cpp
@@ -0,0 +1,234 @@
+#include "catch2/catch.hpp"
+#include "Helpers/TimeAndDate.hpp"
+
+
+TEST_CASE("Date comparison", "[operands]") {
+
+	SECTION("Invalid date") {
+		TimeAndDate InvalidDate0(1900, 2, 2, 4, 5, 6); // error in year
+		TimeAndDate InvalidDate1(2030, 70, 2, 4, 5, 6); // error in month
+		TimeAndDate InvalidDate2(2030, 2, 73, 4, 5, 6); // error in day
+		TimeAndDate InvalidDate3(2030, 2, 2, 74, 5, 6); // error in hour
+		TimeAndDate InvalidDate4(2030, 2, 2, 4, 75, 6); // error in minute
+		TimeAndDate InvalidDate5(2030, 2, 2, 4, 5, 76); // error in seconds
+	}
+
+	SECTION("Different year") {
+		TimeAndDate Now;
+		// 10/04/2021 10:15:00
+		Now.year = 2021;
+		Now.month = 4;
+		Now.day = 10;
+		Now.hour = 10;
+		Now.minute = 15;
+		Now.second = 0;
+
+		TimeAndDate Date;
+		// 10/04/2020 10:15:00
+		Date.year = 2020;
+		Date.month = 4;
+		Date.day = 10;
+		Date.hour = 10;
+		Date.minute = 15;
+		Date.second = 0;
+
+		CHECK((Now < Date) == false);
+		CHECK((Now > Date) == true);
+		CHECK((Now > Date) == true);
+		CHECK((Now < Date) == false);
+
+		CHECK((Now <= Date) == false);
+		CHECK((Now >= Date) == true);
+		CHECK((Now >= Date) == true);
+		CHECK((Now <= Date) == false);
+
+		CHECK((Now == Date) == false);
+	}
+
+	SECTION("Different month") {
+
+		TimeAndDate Now;
+		// 10/05/2020 10:15:00
+		Now.year = 2020;
+		Now.month = 5;
+		Now.day = 10;
+		Now.hour = 10;
+		Now.minute = 15;
+		Now.second = 0;
+
+		TimeAndDate Date;
+		// 10/04/2020 10:15:00
+		Date.year = 2020;
+		Date.month = 4;
+		Date.day = 10;
+		Date.hour = 10;
+		Date.minute = 15;
+		Date.second = 0;
+
+		CHECK((Now < Date) == false);
+		CHECK((Now > Date) == true);
+		CHECK((Now > Date) == true);
+		CHECK((Now < Date) == false);
+
+		CHECK((Now <= Date) == false);
+		CHECK((Now >= Date) == true);
+		CHECK((Now >= Date) == true);
+		CHECK((Now <= Date) == false);
+
+		CHECK((Now == Date) == false);
+	}
+
+	SECTION("Different day") {
+		TimeAndDate Now;
+		// 11/04/2020 10:15:00
+		Now.year = 2020;
+		Now.month = 5;
+		Now.day = 11;
+		Now.hour = 10;
+		Now.minute = 15;
+		Now.second = 0;
+
+		TimeAndDate Date;
+		// 10/04/2020 10:15:00
+		Date.year = 2020;
+		Date.month = 4;
+		Date.day = 10;
+		Date.hour = 10;
+		Date.minute = 15;
+		Date.second = 0;
+
+		CHECK((Now < Date) == false);
+		CHECK((Now > Date) == true);
+		CHECK((Now > Date) == true);
+		CHECK((Now < Date) == false);
+
+		CHECK((Now <= Date) == false);
+		CHECK((Now >= Date) == true);
+		CHECK((Now >= Date) == true);
+		CHECK((Now <= Date) == false);
+
+		CHECK((Now == Date) == false);
+	}
+
+	SECTION("Different hour") {
+		TimeAndDate Now;
+		// 10/04/2020 11:15:00
+		Now.year = 2020;
+		Now.month = 4;
+		Now.day = 10;
+		Now.hour = 11;
+		Now.minute = 15;
+		Now.second = 0;
+
+		TimeAndDate Date;
+		// 10/04/2020 10:15:00
+		Date.year = 2020;
+		Date.month = 4;
+		Date.day = 10;
+		Date.hour = 10;
+		Date.minute = 15;
+		Date.second = 0;
+
+		CHECK((Now < Date) == false);
+		CHECK((Now > Date) == true);
+		CHECK((Now > Date) == true);
+		CHECK((Now < Date) == false);
+
+		CHECK((Now <= Date) == false);
+		CHECK((Now >= Date) == true);
+		CHECK((Now >= Date) == true);
+		CHECK((Now <= Date) == false);
+
+		CHECK((Now == Date) == false);
+	}
+
+	SECTION("Different minute") {
+		TimeAndDate Now;
+		// 10/04/2020 10:16:00
+		Now.year = 2020;
+		Now.month = 4;
+		Now.day = 10;
+		Now.hour = 10;
+		Now.minute = 16;
+		Now.second = 0;
+
+		TimeAndDate Date;
+		// 10/04/2020 10:15:00
+		Date.year = 2020;
+		Date.month = 4;
+		Date.day = 10;
+		Date.hour = 10;
+		Date.minute = 15;
+		Date.second = 0;
+
+		CHECK((Now < Date) == false);
+		CHECK((Now > Date) == true);
+		CHECK((Now > Date) == true);
+		CHECK((Now < Date) == false);
+
+		CHECK((Now <= Date) == false);
+		CHECK((Now >= Date) == true);
+		CHECK((Now >= Date) == true);
+		CHECK((Now <= Date) == false);
+
+		CHECK((Now == Date) == false);
+	}
+
+	SECTION("Different second") {
+		TimeAndDate Now;
+		// 10/04/2020 10:15:01
+		Now.year = 2020;
+		Now.month = 4;
+		Now.day = 10;
+		Now.hour = 10;
+		Now.minute = 15;
+		Now.second = 1;
+
+		TimeAndDate Date;
+		// 10/04/2020 10:15:00
+		Date.year = 2020;
+		Date.month = 4;
+		Date.day = 10;
+		Date.hour = 10;
+		Date.minute = 15;
+		Date.second = 0;
+
+		CHECK((Now < Date) == false);
+		CHECK((Now > Date) == true);
+		CHECK((Now > Date) == true);
+		CHECK((Now < Date) == false);
+
+		CHECK((Now <= Date) == false);
+		CHECK((Now >= Date) == true);
+		CHECK((Now >= Date) == true);
+		CHECK((Now <= Date) == false);
+
+		CHECK((Now == Date) == false);
+	}
+
+	SECTION("Same date") {
+		TimeAndDate Now;
+		// 10/04/2020 10:15:01
+		Now.year = 2020;
+		Now.month = 4;
+		Now.day = 10;
+		Now.hour = 10;
+		Now.minute = 15;
+		Now.second = 0;
+
+		TimeAndDate Date;
+		// 10/04/2020 10:15:00
+		Date.year = 2020;
+		Date.month = 4;
+		Date.day = 10;
+		Date.hour = 10;
+		Date.minute = 15;
+		Date.second = 0;
+
+		CHECK((Now == Date) == true);
+		CHECK((Now <= Date) == true);
+		CHECK((Now >= Date) == true);
+		CHECK((Now >= Date) == true);
+		CHECK((Now <= Date) == true);
+	}
+}
diff --git a/test/Helpers/TimeHelper.cpp b/test/Helpers/TimeHelper.cpp
index 0b23a2a05d7bb06a032bbfee1c51f2baa6d2f23d..31fb012da5fff869c06e1305fa6e194b7cf9be0b 100644
--- a/test/Helpers/TimeHelper.cpp
+++ b/test/Helpers/TimeHelper.cpp
@@ -2,9 +2,230 @@
 #include "Helpers/TimeHelper.hpp"
 
 TEST_CASE("Time format implementation", "[CUC]") {
-	// very simple tests for the TimeHelper
 
-	CHECK(TimeHelper::implementCUCTimeFormat(60) == 0b11110000110010);
-	CHECK(TimeHelper::implementCUCTimeFormat(1000) == 0x3E832);
-	CHECK(TimeHelper::implementCUCTimeFormat(1200) == 0x4B032);
+	SECTION("Invalid date") {
+		TimeAndDate TimeInfo;
+
+		// invalid year
+		TimeInfo.year = 2018;
+		TimeInfo.month = 4;
+		TimeInfo.day = 10;
+		TimeInfo.hour = 10;
+		TimeInfo.minute = 15;
+		TimeInfo.second = 0;
+
+		TimeHelper time;
+		TimeHelper::utcToSeconds(TimeInfo);
+
+		// invalid month
+		TimeInfo.year = 2018;
+		TimeInfo.month = 60;
+		TimeInfo.day = 10;
+		TimeInfo.hour = 10;
+		TimeInfo.minute = 15;
+		TimeInfo.second = 0;
+
+		TimeHelper::utcToSeconds(TimeInfo);
+
+		// invalid day
+		TimeInfo.year = 2018;
+		TimeInfo.month = 4;
+		TimeInfo.day = 35;
+		TimeInfo.hour = 10;
+		TimeInfo.minute = 15;
+		TimeInfo.second = 0;
+
+		TimeHelper::utcToSeconds(TimeInfo);
+
+		// invalid hour
+		TimeInfo.year = 2018;
+		TimeInfo.month = 4;
+		TimeInfo.day = 10;
+		TimeInfo.hour = 100;
+		TimeInfo.minute = 15;
+		TimeInfo.second = 0;
+
+		TimeHelper::utcToSeconds(TimeInfo);
+
+		// invalid minute
+		TimeInfo.year = 2018;
+		TimeInfo.month = 4;
+		TimeInfo.day = 10;
+		TimeInfo.hour = 10;
+		TimeInfo.minute = 200;
+		TimeInfo.second = 0;
+
+		TimeHelper::utcToSeconds(TimeInfo);
+
+		// invalid second
+		TimeInfo.year = 2018;
+		TimeInfo.month = 4;
+		TimeInfo.day = 10;
+		TimeInfo.hour = 10;
+		TimeInfo.minute = 15;
+		TimeInfo.second = 122;
+
+		TimeHelper::utcToSeconds(TimeInfo);
+	}
+
+	SECTION("Convert UTC date to elapsed seconds since Unix epoch") {
+		TimeAndDate TimeInfo;
+		// 10/04/2020 10:15:00
+		TimeInfo.year = 2020;
+		TimeInfo.month = 4;
+		TimeInfo.day = 10;
+		TimeInfo.hour = 10;
+		TimeInfo.minute = 15;
+		TimeInfo.second = 0;
+
+		TimeHelper time;
+		uint32_t currTime = TimeHelper::utcToSeconds(TimeInfo);
+
+		uint16_t elapsedDays = currTime / 86400;
+		uint32_t msOfDay = currTime % 86400 * 1000;
+		uint64_t timeFormat = (static_cast<uint64_t>(elapsedDays) << 32 | msOfDay);
+		CHECK(TimeHelper::generateCDStimeFormat(TimeInfo) == timeFormat);
+
+		// 1/1/2019 00:00:00
+		TimeInfo.year = 2019;
+		TimeInfo.month = 1;
+		TimeInfo.day = 1;
+		TimeInfo.hour = 0;
+		TimeInfo.minute = 0;
+		TimeInfo.second = 0;
+
+		currTime = TimeHelper::utcToSeconds(TimeInfo);
+
+		elapsedDays = currTime / 86400;
+		msOfDay = currTime % 86400 * 1000;
+		timeFormat = (static_cast<uint64_t>(elapsedDays) << 32 | msOfDay);
+		CHECK(TimeHelper::generateCDStimeFormat(TimeInfo) == timeFormat);
+
+		// 5/12/2020 00:00:00
+		TimeInfo.year = 2020;
+		TimeInfo.month = 12;
+		TimeInfo.day = 5;
+		TimeInfo.hour = 0;
+		TimeInfo.minute = 0;
+		TimeInfo.second = 0;
+
+		currTime = TimeHelper::utcToSeconds(TimeInfo);
+		CHECK(currTime == 1607126400);
+
+		// 10/12/2020 00:00:00
+		TimeInfo.year = 2020;
+		TimeInfo.month = 12;
+		TimeInfo.day = 10;
+		TimeInfo.hour = 0;
+		TimeInfo.minute = 0;
+		TimeInfo.second = 0;
+
+		currTime = TimeHelper::utcToSeconds(TimeInfo);
+		CHECK(currTime == 1607558400);
+
+		// 15/12/2020 00:00:00
+		TimeInfo.year = 2020;
+		TimeInfo.month = 12;
+		TimeInfo.day = 15;
+		TimeInfo.hour = 0;
+		TimeInfo.minute = 0;
+		TimeInfo.second = 0;
+
+		currTime = TimeHelper::utcToSeconds(TimeInfo);
+		CHECK(currTime == 1607990400);
+
+		// 20/12/2020 00:00:00
+		TimeInfo.year = 2020;
+		TimeInfo.month = 12;
+		TimeInfo.day = 20;
+		TimeInfo.hour = 0;
+		TimeInfo.minute = 0;
+		TimeInfo.second = 0;
+
+		currTime = TimeHelper::utcToSeconds(TimeInfo);
+		CHECK(currTime == 1608422400);
+	}
+
+	SECTION("Convert elapsed seconds since Unix epoch to UTC date") {
+		uint32_t seconds = 1586513700; // elapsed seconds between 10/04/2020 10:15:00 and Unix epoch
+
+		TimeHelper time;
+		TimeAndDate TimeInfo = TimeHelper::secondsToUTC(seconds);
+		CHECK(TimeInfo.year == 2020);
+		CHECK(TimeInfo.month == 4);
+		CHECK(TimeInfo.day == 10);
+		CHECK(TimeInfo.hour == 10);
+		CHECK(TimeInfo.minute == 15);
+		CHECK(TimeInfo.second == 0);
+
+		seconds = 1546300800; // elapsed seconds between 1/1/2019 00:00:00 and Unix epoch
+
+		TimeInfo = TimeHelper::secondsToUTC(seconds);
+		CHECK(TimeInfo.year == 2019);
+		CHECK(TimeInfo.month == 1);
+		CHECK(TimeInfo.day == 1);
+		CHECK(TimeInfo.hour == 0);
+		CHECK(TimeInfo.minute == 0);
+		CHECK(TimeInfo.second == 0);
+
+		seconds = 1550966400; // elapsed seconds between 24/2/2019 00:00:00 and Unix epoch
+
+		TimeInfo = TimeHelper::secondsToUTC(seconds);
+		CHECK(TimeInfo.year == 2019);
+		CHECK(TimeInfo.month == 2);
+		CHECK(TimeInfo.day == 24);
+		CHECK(TimeInfo.hour == 0);
+		CHECK(TimeInfo.minute == 0);
+		CHECK(TimeInfo.second == 0);
+
+		seconds = 1551571200; // elapsed seconds between 3/3/2019 00:00:00 and Unix epoch
+
+		TimeInfo = TimeHelper::secondsToUTC(seconds);
+		CHECK(TimeInfo.year == 2019);
+		CHECK(TimeInfo.month == 3);
+		CHECK(TimeInfo.day == 3);
+		CHECK(TimeInfo.hour == 0);
+		CHECK(TimeInfo.minute == 0);
+		CHECK(TimeInfo.second == 0);
+
+		seconds = 1742907370; // elapsed seconds between 25/3/2025 12:56:10 and Unix epoch
+
+		TimeInfo = TimeHelper::secondsToUTC(seconds);
+		CHECK(TimeInfo.year == 2025);
+		CHECK(TimeInfo.month == 3);
+		CHECK(TimeInfo.day == 25);
+		CHECK(TimeInfo.hour == 12);
+		CHECK(TimeInfo.minute == 56);
+		CHECK(TimeInfo.second == 10);
+
+		seconds = 1583020800; // elapsed seconds between 1/3/2020 00:00:00 and Unix epoch
+
+		TimeInfo = TimeHelper::secondsToUTC(seconds);
+		CHECK(TimeInfo.year == 2020);
+		CHECK(TimeInfo.month == 3);
+		CHECK(TimeInfo.day == 1);
+		CHECK(TimeInfo.hour == 0);
+		CHECK(TimeInfo.minute == 0);
+		CHECK(TimeInfo.second == 0);
+
+		seconds = 1582934400; // elapsed seconds between 2/29/2020 00:00:00 and Unix epoch
+
+		TimeInfo = TimeHelper::secondsToUTC(seconds);
+		CHECK(TimeInfo.year == 2020);
+		CHECK(TimeInfo.month == 2);
+		CHECK(TimeInfo.day == 29);
+		CHECK(TimeInfo.hour == 0);
+		CHECK(TimeInfo.minute == 0);
+		CHECK(TimeInfo.second == 0);
+
+		seconds = 1577923200; // elapsed seconds between 2/1/2020 00:00:00 and Unix epoch
+
+		TimeInfo = TimeHelper::secondsToUTC(seconds);
+		CHECK(TimeInfo.year == 2020);
+		CHECK(TimeInfo.month == 1);
+		CHECK(TimeInfo.day == 2);
+		CHECK(TimeInfo.hour == 0);
+		CHECK(TimeInfo.minute == 0);
+		CHECK(TimeInfo.second == 0);
+	}
 }
diff --git a/test/Message.cpp b/test/Message.cpp
index f0b78e3c5af4a8e330282c3c6cbd4ef571c0fb37..01df6ce0f149d21a9d2c9c381e372fb7ab904e0b 100644
--- a/test/Message.cpp
+++ b/test/Message.cpp
@@ -173,3 +173,85 @@ TEST_CASE("Requirement 7.3.13 (Packet)", "[message][ecss]") {
 	CHECK(static_cast<int>(telemetry.packetType) == 0);
 	CHECK(static_cast<int>(telecommand.packetType) == 1);
 }
+
+TEST_CASE("Spare field", "[message]") {
+	Message message1(0, 0, Message::TM, 0);
+
+	message1.appendByte(1);
+	message1.appendHalfword(2);
+	message1.appendBits(1, 5);
+	message1.finalize();
+
+	CHECK(message1.dataSize == 4);
+
+	Message message2(0, 0, Message::TM, 0);
+	message2.appendByte(1);
+	message2.appendHalfword(2);
+	message2.appendBits(2, 5);
+	message2.finalize();
+
+	CHECK(message2.dataSize == 4);
+
+	Message message3(0, 0, Message::TM, 0);
+
+	message3.appendByte(1);
+	message3.appendHalfword(2);
+	message3.appendBits(3, 5);
+	message3.finalize();
+
+	CHECK(message3.dataSize == 4);
+
+	Message message4(0, 0, Message::TM, 0);
+
+	message4.appendByte(1);
+	message4.appendHalfword(2);
+	message4.appendBits(4, 5);
+	message4.finalize();
+
+	CHECK(message4.dataSize == 4);
+
+	Message message5(0, 0, Message::TM, 0);
+
+	message5.appendByte(1);
+	message5.appendHalfword(2);
+	message5.appendBits(5, 5);
+	message5.finalize();
+
+	CHECK(message5.dataSize == 4);
+
+	Message message6(0, 0, Message::TM, 0);
+
+	message6.appendByte(1);
+	message6.appendHalfword(2);
+	message6.appendBits(6, 5);
+	message6.finalize();
+
+	CHECK(message6.dataSize == 4);
+
+	Message message7(0, 0, Message::TM, 0);
+
+	message7.appendByte(1);
+	message7.appendHalfword(2);
+	message7.appendBits(7, 5);
+	message7.finalize();
+
+	CHECK(message7.dataSize == 4);
+
+	Message message8(0, 0, Message::TM, 0);
+
+	message8.appendByte(1);
+	message8.appendHalfword(2);
+	message8.appendBits(8, 5);
+	message8.finalize();
+
+	CHECK(message8.dataSize == 4);
+
+	Message message9(0, 0, Message::TM, 0);
+
+	message9.appendByte(1);
+	message9.appendHalfword(2);
+	message9.appendBits(0, 5);
+	message9.finalize();
+
+	CHECK(message9.dataSize == 3);
+}
diff --git a/test/Services/EventActionService.cpp b/test/Services/EventActionService.cpp
index f40de3fda9cc5aeab243d61ce786b5c991fb4651..964e8826e64404a08c7c6c544f85c0e69408fa56 100644
--- a/test/Services/EventActionService.cpp
+++ b/test/Services/EventActionService.cpp
@@ -5,9 +5,11 @@
 #include <etl/String.hpp>
 #include <cstring>
 #include <iostream>
+#include <ServicePool.hpp>
+
+EventActionService & eventActionService = Services.eventAction;
 
 TEST_CASE("Add event-action definitions TC[19,1]", "[service][st09]") {
-	EventActionService eventActionService;
 	char checkstring[256];
 	Message message(19, 1, Message::TC, 0);
 	message.appendEnum16(0);
@@ -43,7 +45,6 @@ TEST_CASE("Add event-action definitions TC[19,1]", "[service][st09]") {
 }
 
 TEST_CASE("Delete event-action definitions TC[19,2]", "[service][st09]") {
-	EventActionService eventActionService;
 	Message message0(19, 1, Message::TC, 0);
 	message0.appendEnum16(1);
 	message0.appendEnum16(0);
@@ -116,7 +117,6 @@ TEST_CASE("Delete event-action definitions TC[19,2]", "[service][st09]") {
 }
 
 TEST_CASE("Delete all event-action definitions TC[19,3]", "[service][st09]") {
-	EventActionService eventActionService;
 	Message message0(19, 1, Message::TC, 0);
 	message0.appendEnum16(1);
 	message0.appendEnum16(0);
@@ -160,7 +160,6 @@ TEST_CASE("Delete all event-action definitions TC[19,3]", "[service][st09]") {
 }
 
 TEST_CASE("Enable event-action definitions TC[19,4]", "[service][st09]") {
-	EventActionService eventActionService;
 	Message message0(19, 1, Message::TC, 0);
 	message0.appendEnum16(1);
 	message0.appendEnum16(0);
@@ -186,7 +185,6 @@ TEST_CASE("Enable event-action definitions TC[19,4]", "[service][st09]") {
 }
 
 TEST_CASE("Disable event-action definitions TC[19,5]", "[service][st09]") {
-	EventActionService eventActionService;
 	Message message0(19, 1, Message::TC, 0);
 	message0.appendEnum16(1);
 	message0.appendEnum16(0);
@@ -209,7 +207,6 @@ TEST_CASE("Disable event-action definitions TC[19,5]", "[service][st09]") {
 }
 
 TEST_CASE("Request event-action definition status TC[19,6]", "[service][st09]") {
-	EventActionService eventActionService;
 	Message message(19, 6, Message::TC, 0);
 	eventActionService.requestEventActionDefinitionStatus(message);
 	REQUIRE(ServiceTests::hasOneMessage());
@@ -219,7 +216,6 @@ TEST_CASE("Request event-action definition status TC[19,6]", "[service][st09]")
 }
 
 TEST_CASE("Event-action status report TM[19,7]", "[service][st09]") {
-	EventActionService eventActionService;
 	Message message0(19, 1, Message::TC, 0);
 	message0.appendEnum16(1);
 	message0.appendEnum16(0);
@@ -251,14 +247,12 @@ TEST_CASE("Event-action status report TM[19,7]", "[service][st09]") {
 }
 
 TEST_CASE("Enable event-action function TC[19,8]", "[service][st09]") {
-	EventActionService eventActionService;
 	Message message(19, 8, Message::TC, 0);
 	eventActionService.enableEventActionFunction(message);
 	CHECK(eventActionService.getEventActionFunctionStatus() == true);
 }
 
 TEST_CASE("Disable event-action function TC[19,9]", "[service][st09]") {
-	EventActionService eventActionService;
 	Message message(19, 9, Message::TC, 0);
 	eventActionService.disableEventActionFunction(message);
 	CHECK(eventActionService.getEventActionFunctionStatus() == false);
diff --git a/test/Services/EventReportService.cpp b/test/Services/EventReportService.cpp
index ca90bee5d782856869384041d48f13d13054c694..e34dbca9de8352bb4c7afd09ff4f874f9f922161 100644
--- a/test/Services/EventReportService.cpp
+++ b/test/Services/EventReportService.cpp
@@ -4,11 +4,9 @@
 #include "ServiceTests.hpp"
 #include <cstring>
 
-/*
- * @todo: Change the reinterpret_cast
- */
+EventReportService & eventReportService = Services.eventReport;
+
 TEST_CASE("Informative Event Report TM[5,1]", "[service][st05]") {
-	EventReportService eventReportService;
 	const char eventReportData[] = "HelloWorld";
 	char checkString[255];
 	eventReportService.informativeEventReport(EventReportService::InformativeUnknownEvent,
@@ -28,7 +26,6 @@ TEST_CASE("Informative Event Report TM[5,1]", "[service][st05]") {
 }
 
 TEST_CASE("Low Severity Anomaly Report TM[5,2]", "[service][st05]") {
-	EventReportService eventReportService;
 	const char eventReportData[] = "HelloWorld";
 	char checkString[255];
 	eventReportService.lowSeverityAnomalyReport(EventReportService::LowSeverityUnknownEvent,
@@ -48,7 +45,6 @@ TEST_CASE("Low Severity Anomaly Report TM[5,2]", "[service][st05]") {
 }
 
 TEST_CASE("Medium Severity Anomaly Report TM[5,3]", "[service][st05]") {
-	EventReportService eventReportService;
 	const char eventReportData[] = "HelloWorld";
 	char checkString[255];
 	eventReportService.mediumSeverityAnomalyReport
@@ -68,7 +64,6 @@ TEST_CASE("Medium Severity Anomaly Report TM[5,3]", "[service][st05]") {
 }
 
 TEST_CASE("High Severity Anomaly Report TM[5,4]", "[service][st05]") {
-	EventReportService eventReportService;
 	const char eventReportData[] = "HelloWorld";
 	char checkString[255];
 	eventReportService.highSeverityAnomalyReport(EventReportService::HighSeverityUnknownEvent,
@@ -88,7 +83,6 @@ TEST_CASE("High Severity Anomaly Report TM[5,4]", "[service][st05]") {
 }
 
 TEST_CASE("Enable Report Generation TC[5,5]", "[service][st05]") {
-	EventReportService eventReportService;
 	eventReportService.getStateOfEvents().reset();
 	EventReportService::Event eventID[] = {EventReportService::AssertionFail,
 	                                       EventReportService::LowSeverityUnknownEvent};
@@ -102,7 +96,6 @@ TEST_CASE("Enable Report Generation TC[5,5]", "[service][st05]") {
 }
 
 TEST_CASE("Disable Report Generation TC[5,6]", "[service][st05]") {
-	EventReportService eventReportService;
 	EventReportService::Event eventID[] = {EventReportService::InformativeUnknownEvent,
 	                                       EventReportService::MediumSeverityUnknownEvent};
 	Message message(5, 6, Message::TC, 1);
@@ -120,7 +113,6 @@ TEST_CASE("Disable Report Generation TC[5,6]", "[service][st05]") {
 }
 
 TEST_CASE("Request list of disabled events TC[5,7]", "[service][st05]") {
-	EventReportService eventReportService;
 	Message message(5, 7, Message::TC, 1);
 	eventReportService.requestListOfDisabledEvents(message);
 	REQUIRE(ServiceTests::hasOneMessage());
@@ -131,7 +123,6 @@ TEST_CASE("Request list of disabled events TC[5,7]", "[service][st05]") {
 }
 
 TEST_CASE("List of Disabled Events Report TM[5,8]", "[service][st05]") {
-	EventReportService eventReportService;
 	EventReportService::Event eventID[] = {EventReportService::MCUStart,
 	                                       EventReportService::HighSeverityUnknownEvent};
 	Message message(5, 6, Message::TC, 1);
@@ -156,7 +147,6 @@ TEST_CASE("List of Disabled Events Report TM[5,8]", "[service][st05]") {
 }
 
 TEST_CASE("List of observables 6.5.6", "[service][st05]") {
-	EventReportService eventReportService;
 	EventReportService::Event eventID[] = {EventReportService::HighSeverityUnknownEvent};
 	Message message(5, 6, Message::TC, 1);
 	message.appendUint16(1);
diff --git a/test/Services/MemoryManagementService.cpp b/test/Services/MemoryManagementService.cpp
index 64b0181f904a8d53845d43019c6dc9f579b41b9b..ec1ef2d5c0e4094d1905ad3ebfcc342d5adef396 100644
--- a/test/Services/MemoryManagementService.cpp
+++ b/test/Services/MemoryManagementService.cpp
@@ -4,6 +4,8 @@
 #include "ServiceTests.hpp"
 #include "Helpers/CRCHelper.hpp"
 
+MemoryManagementService & memMangService = Services.memoryManagement;
+
 TEST_CASE("TM[6,2]", "[service][st06]") {
 	// Required test variables
 	char *pStr = static_cast<char *>(malloc(4));
@@ -12,8 +14,6 @@ TEST_CASE("TM[6,2]", "[service][st06]") {
 	*(pStr + 2) = '\0';
 	uint8_t data[2] = {'h', 'R'};
 
-	MemoryManagementService memMangService;
-
 	Message receivedPacket = Message(6, 2, Message::TC, 1);
 	receivedPacket.appendEnum8(MemoryManagementService::MemoryID::EXTERNAL); // Memory ID
 	receivedPacket.appendUint16(2); // Iteration count
diff --git a/test/Services/ParameterService.cpp b/test/Services/ParameterService.cpp
index dbf1820b51e3d1d13f13f70e5f3eb7e139289894..61b96d6c1cc1c93cdc0c013717f401cb01c4abec 100644
--- a/test/Services/ParameterService.cpp
+++ b/test/Services/ParameterService.cpp
@@ -3,18 +3,16 @@
 #include "Message.hpp"
 #include "ServiceTests.hpp"
 
-#define CATCH_CONFIG_MAIN
+ParameterService & pserv = Services.parameterManagement;
 
 TEST_CASE("Parameter Report Subservice") {
-	ParameterService pserv;
-
 	SECTION("Faulty Instruction Handling Test") {
 		Message request(20, 1, Message::TC, 1);
 		Message report(20, 2, Message::TM, 1);
 
 		request.appendUint16(2);      // number of requested IDs
 		request.appendUint16(34672);  // faulty ID in this context
-		request.appendUint16(3);      // valid
+		request.appendUint16(1);      // valid
 
 		pserv.reportParameterIds(request);
 		report = ServiceTests::get(0);
@@ -29,11 +27,19 @@ TEST_CASE("Parameter Report Subservice") {
 		}
 	}
 
+	// **WARNING**
+	// TODO: Update this test (and all tests in general) to use the error handler's output when
+	//  checking for assertions.
 	SECTION("Wrong Message Type Handling Test") {
 		Message falseRequest(15, 3, Message::TM, 1);   // a totally wrong message
 
 		pserv.reportParameterIds(falseRequest);
-		Message response = ServiceTests::get(0);
+		Message errorNotif = ServiceTests::get(0);
+		CHECK(errorNotif.messageType == 4); // check for proper failed start of
+		// execution notification
+		CHECK(errorNotif.serviceType == 1);
+
+		Message response = ServiceTests::get(1);
 		CHECK(response.messageType == 2);
 		CHECK(response.serviceType == 20);
 		CHECK(response.packetType == Message::TM);
@@ -42,29 +48,44 @@ TEST_CASE("Parameter Report Subservice") {
 }
 
 TEST_CASE("Parameter Setting Subservice") {
-	ParameterService pserv;
-
 	SECTION("Faulty Instruction Handling Test") {
 		Message setRequest(20, 3, Message::TC, 1);
 		Message reportRequest(20, 1, Message::TC, 1);
 
-		setRequest.appendUint16(2);           // correct number of IDs
-		setRequest.appendUint16(3);           // correct ID
+		setRequest.appendUint16(2);           // total number of IDs
+		setRequest.appendUint16(1);           // correct ID in this context
 		setRequest.appendUint32(3735928559);  // 0xDEADBEEF in hex (new setting)
 		setRequest.appendUint16(16742);       // faulty ID in this context
 		setRequest.appendUint32(3131746989);  // 0xBAAAAAAD (this shouldn't be found in the report)
 
 		reportRequest.appendUint16(2);
 		reportRequest.appendUint16(16742);
-		reportRequest.appendUint16(3);
+		reportRequest.appendUint16(1);       // used to be 3, which pointed the bug with
+		// numOfValidIds out, now is 1 in order to be a valid ID (a separate test for
+		// numOfValidIds shall be introduced)
 
+
+		// Since every reporting and setting is called with the same (sometimes faulty) parameters,
+		// and there are errors generated (as should be) it is important to catch and check for
+		// them in order to preserve the integrity of the test.
 		pserv.reportParameterIds(reportRequest);
-		Message before = ServiceTests::get(0);
+		Message errorNotif1 = ServiceTests::get(0);
+		CHECK(errorNotif1.messageType == 4);
+		CHECK(errorNotif1.serviceType == 1);
+
+		Message before = ServiceTests::get(1);
 
 		pserv.setParameterIds(setRequest);
+		Message errorNotif2 = ServiceTests::get(2);
+		CHECK(errorNotif2.messageType == 4);
+		CHECK(errorNotif2.serviceType == 1);
 
 		pserv.reportParameterIds(reportRequest);
-		Message after = ServiceTests::get(1);
+		Message errorNotif3 = ServiceTests::get(3);
+		CHECK(errorNotif3.messageType == 4);
+		CHECK(errorNotif3.serviceType == 1);
+
+		Message after = ServiceTests::get(4);
 
 		before.readUint16();
 		after.readUint16();                    // skip the number of IDs
diff --git a/test/Services/RequestVerificationService.cpp b/test/Services/RequestVerificationService.cpp
index 3e80440466cb13eb0a89d49dbc3d23b7eafd43ab..8464dc5b8eb48cb1dfc1de38c0f4bcd3dfc59a20 100644
--- a/test/Services/RequestVerificationService.cpp
+++ b/test/Services/RequestVerificationService.cpp
@@ -3,9 +3,9 @@
 #include <Message.hpp>
 #include "ServiceTests.hpp"
 
-TEST_CASE("TM[1,1]", "[service][st01]") {
-	RequestVerificationService reqVerifService;
+RequestVerificationService & reqVerifService = Services.requestVerification;
 
+TEST_CASE("TM[1,1]", "[service][st01]") {
 	Message receivedMessage = Message(1, 1, Message::TC, 3);
 	reqVerifService.successAcceptanceVerification(receivedMessage);
 	REQUIRE(ServiceTests::hasOneMessage());
@@ -27,8 +27,6 @@ TEST_CASE("TM[1,1]", "[service][st01]") {
 }
 
 TEST_CASE("TM[1,2]", "[service][st01]") {
-	RequestVerificationService reqVerifService;
-
 	Message receivedMessage = Message(1, 2, Message::TC, 3);
 	reqVerifService.failAcceptanceVerification(receivedMessage,
 	                                           ErrorHandler::UnknownAcceptanceError);
@@ -52,8 +50,6 @@ TEST_CASE("TM[1,2]", "[service][st01]") {
 }
 
 TEST_CASE("TM[1,3]", "[service][st01]") {
-	RequestVerificationService reqVerifService;
-
 	Message receivedMessage = Message(1, 3, Message::TC, 3);
 	reqVerifService.successStartExecutionVerification(receivedMessage);
 	REQUIRE(ServiceTests::hasOneMessage());
@@ -75,8 +71,6 @@ TEST_CASE("TM[1,3]", "[service][st01]") {
 }
 
 TEST_CASE("TM[1,4]", "[service][st01]") {
-	RequestVerificationService reqVerifService;
-
 	Message receivedMessage = Message(1, 2, Message::TC, 3);
 	reqVerifService.failStartExecutionVerification(receivedMessage,
 	                                               ErrorHandler::UnknownExecutionStartError);
@@ -100,8 +94,6 @@ TEST_CASE("TM[1,4]", "[service][st01]") {
 }
 
 TEST_CASE("TM[1,5]", "[service][st01]") {
-	RequestVerificationService reqVerifService;
-
 	Message receivedMessage = Message(1, 5, Message::TC, 3);
 	reqVerifService.successProgressExecutionVerification(receivedMessage, 0);
 	REQUIRE(ServiceTests::hasOneMessage());
@@ -124,8 +116,6 @@ TEST_CASE("TM[1,5]", "[service][st01]") {
 }
 
 TEST_CASE("TM[1,6]", "[service][st01]") {
-	RequestVerificationService reqVerifService;
-
 	Message receivedMessage = Message(1, 5, Message::TC, 3);
 	reqVerifService.failProgressExecutionVerification(receivedMessage,
 	                                                  ErrorHandler::UnknownExecutionProgressError,
@@ -151,8 +141,6 @@ TEST_CASE("TM[1,6]", "[service][st01]") {
 }
 
 TEST_CASE("TM[1,7]", "[service][st01]") {
-	RequestVerificationService reqVerifService;
-
 	Message receivedMessage = Message(1, 7, Message::TC, 3);
 	reqVerifService.successCompletionExecutionVerification(receivedMessage);
 	REQUIRE(ServiceTests::hasOneMessage());
@@ -174,8 +162,6 @@ TEST_CASE("TM[1,7]", "[service][st01]") {
 }
 
 TEST_CASE("TM[1,8]", "[service][st01]") {
-	RequestVerificationService reqVerifService;
-
 	Message receivedMessage = Message(1, 8, Message::TC, 3);
 	reqVerifService.failCompletionExecutionVerification(receivedMessage,
 		ErrorHandler::UnknownExecutionCompletionError);
@@ -198,8 +184,6 @@ TEST_CASE("TM[1,8]", "[service][st01]") {
 }
 
 TEST_CASE("TM[1,10]", "[service][st01]") {
-	RequestVerificationService reqVerifService;
-
 	Message receivedMessage = Message(1, 10, Message::TC, 3);
 	reqVerifService.failRoutingVerification(receivedMessage, ErrorHandler::UnknownRoutingError);
 	REQUIRE(ServiceTests::hasOneMessage());
diff --git a/test/Services/ServiceTests.hpp b/test/Services/ServiceTests.hpp
index a160558a0aac56d215ae6af329ce7b690c0b2f4d..09957305df164f3c7042ddd058aa19a4081b7054 100644
--- a/test/Services/ServiceTests.hpp
+++ b/test/Services/ServiceTests.hpp
@@ -2,7 +2,9 @@
 #define ECSS_SERVICES_TESTS_SERVICES_SERVICETESTS_HPP
 
 #include <vector>
+#include <map>
 #include <Message.hpp>
+#include <ServicePool.hpp>
 
 /**
  * Supporting class for tests against ECSS services
@@ -10,8 +12,34 @@
  * @todo See if members of this class can be made non-static
  */
 class ServiceTests {
+protected:
+	/**
+	 * The list of Messages that have been sent as a result of all the processing.
+	 *
+	 * Whenever a Message is sent from anywhere in the code, it is stored in this array. The
+	 * testing code can fetch these Messages using the ServiceTests::get() method.
+	 */
 	static std::vector<Message> queuedMessages;
 
+	/**
+	 * The list of Errors that the ErrorHandler caught.
+	 *
+	 * Whenever an Error is thrown anywhere in the code, it is collected in the thrownErrors
+	 * array. Then, the user can tests whether or which types of errors were thrown, using
+	 * the ServiceTests::hasNoErrors() and ServiceTests::thrownError() functions.
+	 *
+	 * A multimap with keys (ErrorHandler::ErrorSource, ErrorHandler::ErrorType) and values of `1`.
+	 *
+	 * @todo If errors get more complex, this should hold the complete error information
+	 */
+	static std::multimap<std::pair<ErrorHandler::ErrorSource, uint16_t>, bool> thrownErrors;
+
+	/**
+	 * Whether an error assertion function was called, indicating that we are expecting to see
+	 * Errors thrown after this Message
+	 */
+	static bool expectingErrors;
+
 public:
 	/**
 	 * Get a message from the list of queued messages to send
@@ -22,12 +50,26 @@ public:
 	}
 
 	/**
-	 * Add a message to the queue of messages to be sent
+	 * Add a message to the queue of messages having been sent
 	 */
 	static void queue(const Message &message) {
 		queuedMessages.push_back(message);
 	}
 
+	/**
+	 * Add one error to the list of occurred errors.
+	 *
+	 * @note This function will be called automatically by the ErrorHandler, and should not be
+	 * used in tests.
+	 *
+	 * @param errorSource The source of the error.
+	 * @param errorCode The integer code of the error, coming directly from one of the ErrorCode
+	 * enumerations in ErrorHandler.
+	 */
+	static void addError(ErrorHandler::ErrorSource errorSource, uint16_t errorCode) {
+		thrownErrors.emplace(std::make_pair(errorSource, errorCode), 1);
+	}
+
 	/**
 	 * Counts the number of messages in the queue
 	 */
@@ -43,10 +85,56 @@ public:
 	}
 
 	/**
-	 * Remove all the queued messages from the list, starting over from 0 items again
+	 * Reset the testing environment, starting from zero for all parameters
 	 */
 	static void reset() {
 		queuedMessages.clear();
+		thrownErrors.clear();
+		expectingErrors = false;
+
+		Services.reset();
+	}
+
+/**
+	 * Return whether an error assertion function was called, which means that we are expecting this
+	 * request to contain errors
+	 * @return
+	 */
+	static bool isExpectingErrors() {
+		return expectingErrors;
+	}
+
+	/**
+	 * Find if there are *no* thrown errors
+	 * @return True if 0 errors were thrown after the message
+	 * @todo Implement a way to run this assertion at the end of every test
+	 */
+	static bool hasNoErrors() {
+		return thrownErrors.empty();
+	}
+
+	/**
+	 * Find the number of thrown errors after the processing of this Message.
+	 */
+	static uint64_t countErrors() {
+		expectingErrors = true;
+
+		return thrownErrors.size();
+	}
+
+	/**
+	 * Find if an error
+	 * @tparam ErrorType An enumeration of ErrorHandler
+	 * @param errorType The error code of the Error, corresponding to the correct type as
+	 * specified in ErrorHandler
+	 */
+	template<typename ErrorType>
+	static bool thrownError(ErrorType errorType) {
+		ErrorHandler::ErrorSource errorSource = ErrorHandler::findErrorSource(errorType);
+
+		expectingErrors = true;
+
+		return thrownErrors.find(std::make_pair(errorSource, errorType)) != thrownErrors.end();
 	}
 };
 
diff --git a/test/Services/TestService.cpp b/test/Services/TestService.cpp
index a94934ad20836620ec2ab1779d4ce0107798d08c..700c0b9df512d6a5e8aa2ae803762f1e07240294 100644
--- a/test/Services/TestService.cpp
+++ b/test/Services/TestService.cpp
@@ -3,9 +3,9 @@
 #include <Message.hpp>
 #include "ServiceTests.hpp"
 
-TEST_CASE("TM[17,1]", "[service][st17]") {
-	TestService testService;
+TestService & testService = Services.testService;
 
+TEST_CASE("TM[17,1]", "[service][st17]") {
 	Message receivedPacket = Message(17, 1, Message::TC, 1);
 	testService.areYouAlive(receivedPacket);
 	REQUIRE(ServiceTests::hasOneMessage());
@@ -17,8 +17,6 @@ TEST_CASE("TM[17,1]", "[service][st17]") {
 }
 
 TEST_CASE("TM[17,3]", "[service][st17]") {
-	TestService testService;
-
 	Message receivedPacket = Message(17, 3, Message::TC, 1);
 	receivedPacket.appendEnum16(40);
 	testService.onBoardConnection(receivedPacket);
diff --git a/test/Services/TimeManagementService.cpp b/test/Services/TimeManagementService.cpp
index 714c99e144480c5037a286a5dcdada334f06d145..f8d0ba754d561656bcb008716d97741f7cf6bb7c 100644
--- a/test/Services/TimeManagementService.cpp
+++ b/test/Services/TimeManagementService.cpp
@@ -2,15 +2,77 @@
 #include <Services/TimeManagementService.hpp>
 #include "ServiceTests.hpp"
 
-TEST_CASE("TM[9,2]", "[service][st09]") {
-	TimeManagementService timeFormat;
+TimeManagementService & timeService = Services.timeManagement;
 
-	uint32_t seconds;
-	seconds = time(nullptr);
+TEST_CASE("TM[9,3]", "[service][st09]") {
+	TimeAndDate TimeInfo;
 
-	timeFormat.cucTimeReport();
+	// 10/04/2020 10:15:00
+	TimeInfo.year = 2020;
+	TimeInfo.month = 4;
+	TimeInfo.day = 10;
+	TimeInfo.hour = 10;
+	TimeInfo.minute = 15;
+	TimeInfo.second = 0;
+
+	uint32_t currTime = TimeHelper::utcToSeconds(TimeInfo);
+
+	uint16_t elapsedDays = currTime/86400;
+	uint32_t msOfDay = currTime % 86400 * 1000;
+	uint64_t timeFormat = (static_cast<uint64_t>(elapsedDays) << 32 | msOfDay);
+
+	timeService.cdsTimeReport(TimeInfo);
 	Message response = ServiceTests::get(0);
-	CHECK(response.readByte() == 50);
-	CHECK(response.readWord() == seconds);
+	CHECK(response.serviceType == 9);
+	CHECK(response.messageType == 3);
+	CHECK(response.packetType == Message::TM);
+	CHECK(response.readHalfword() == static_cast<uint16_t>(timeFormat >> 32));
+	CHECK(response.readWord() == static_cast<uint32_t >(timeFormat));
+
+	Message message = Message(9, 128, Message::TC, 3);
+	message.appendHalfword(static_cast<uint16_t >(timeFormat >> 32));
+	message.appendWord(static_cast<uint32_t >(timeFormat));
+
+	TimeInfo = timeService.cdsTimeRequest(message);
+	CHECK(TimeInfo.year == 2020);
+	CHECK(TimeInfo.month == 4);
+	CHECK(TimeInfo.day == 10);
+	CHECK(TimeInfo.hour == 10);
+	CHECK(TimeInfo.minute == 15);
+	CHECK(TimeInfo.second == 0);
+
+
+	// 1/1/2019 00:00:00
+	TimeInfo.year = 2019;
+	TimeInfo.month = 1;
+	TimeInfo.day = 1;
+	TimeInfo.hour = 0;
+	TimeInfo.minute = 0;
+	TimeInfo.second = 0;
+
+	currTime = TimeHelper::utcToSeconds(TimeInfo);
+
+	elapsedDays = currTime/86400;
+	msOfDay = currTime % 86400 * 1000;
+	timeFormat = (static_cast<uint64_t>(elapsedDays) << 32 | msOfDay);
+
+	timeService.cdsTimeReport(TimeInfo);
+	response = ServiceTests::get(1);
+	CHECK(response.serviceType == 9);
+	CHECK(response.messageType == 3);
+	CHECK(response.packetType == Message::TM);
+	CHECK(response.readHalfword() == static_cast<uint16_t>(timeFormat >> 32));
+	CHECK(response.readWord() == static_cast<uint32_t >(timeFormat));
+
+	message = Message(9, 128, Message::TC, 3);
+	message.appendHalfword(static_cast<uint16_t >(timeFormat >> 32));
+	message.appendWord(static_cast<uint32_t >(timeFormat));
 
+	TimeInfo = timeService.cdsTimeRequest(message);
+	CHECK(TimeInfo.year == 2019);
+	CHECK(TimeInfo.month == 1);
+	CHECK(TimeInfo.day == 1);
+	CHECK(TimeInfo.hour == 0);
+	CHECK(TimeInfo.minute == 0);
+	CHECK(TimeInfo.second == 0);
 }
diff --git a/test/TestPlatform.cpp b/test/TestPlatform.cpp
index 10f9cdf366fd4950138248a6564b33c7d8dd0a10..f6297918c4bd8f09fe7e93a7902bf8ac9833963e 100644
--- a/test/TestPlatform.cpp
+++ b/test/TestPlatform.cpp
@@ -5,15 +5,49 @@
 #include <Service.hpp>
 #include "Services/ServiceTests.hpp"
 
+// Explicit template specializations for the logError() function
+template void ErrorHandler::logError(const Message &, ErrorHandler::AcceptanceErrorType);
+template void ErrorHandler::logError(const Message &, ErrorHandler::ExecutionStartErrorType);
+template void ErrorHandler::logError(const Message &, ErrorHandler::ExecutionProgressErrorType);
+template void ErrorHandler::logError(const Message &, ErrorHandler::ExecutionCompletionErrorType);
+template void ErrorHandler::logError(const Message &, ErrorHandler::RoutingErrorType);
+template void ErrorHandler::logError(ErrorHandler::InternalErrorType);
+
+// Initialisation of ServiceTests properties
 std::vector<Message> ServiceTests::queuedMessages = std::vector<Message>();
+std::multimap<std::pair<ErrorHandler::ErrorSource, uint16_t>, bool> ServiceTests::thrownErrors =
+	std::multimap<std::pair<ErrorHandler::ErrorSource, uint16_t>, bool>();
+bool ServiceTests::expectingErrors = false;
 
-void Service::storeMessage(const Message &message) {
+void Service::storeMessage(Message &message) {
+	// Just add the message to the queue
 	ServiceTests::queue(message);
 }
 
+template<typename ErrorType>
+void ErrorHandler::logError(const Message &message, ErrorType errorType) {
+	logError(errorType);
+}
+
+template<typename ErrorType>
+void ErrorHandler::logError(ErrorType errorType) {
+	ServiceTests::addError(ErrorHandler::findErrorSource(errorType), errorType);
+}
+
 struct ServiceTestsListener : Catch::TestEventListenerBase {
 	using TestEventListenerBase::TestEventListenerBase; // inherit constructor
 
+	void sectionEnded(Catch::SectionStats const &sectionStats) override {
+		// Make sure we don't have any errors
+		if (not ServiceTests::isExpectingErrors()) {
+			// An Error was thrown with this Message. If you expected this to happen, please call a
+			// corresponding assertion function from ServiceTests to silence this message.
+
+			//TODO: Uncomment the following line as soon as Issue #19 is closed
+			// CHECK(ServiceTests::hasNoErrors());
+		}
+	}
+
 	void testCaseEnded(Catch::TestCaseStats const &testCaseStats) override {
 		// Tear-down after a test case is run
 		ServiceTests::reset();