diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0f4a9e3a..a18ea640 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -31,6 +31,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## Changes
 
+- Moved some container returnvalues to dedicated header and namespace
+  to they can be used without template specification.
+  PR: https://egit.irs.uni-stuttgart.de/fsfw/fsfw/pulls/707
 - Remove default secondary header argument for
   `uint16_t getTcSpacePacketIdFromApid(uint16_t apid, bool secondaryHeaderFlag)` and
   `uint16_t getTmSpacePacketIdFromApid(uint16_t apid, bool secondaryHeaderFlag)`
diff --git a/src/fsfw/container/ArrayList.h b/src/fsfw/container/ArrayList.h
index f5f74cf1..92834558 100644
--- a/src/fsfw/container/ArrayList.h
+++ b/src/fsfw/container/ArrayList.h
@@ -4,6 +4,7 @@
 #include "../returnvalues/returnvalue.h"
 #include "../serialize/SerializeAdapter.h"
 #include "../serialize/SerializeIF.h"
+#include "definitions.h"
 
 /**
  * @brief     A List that stores its values in an array.
@@ -19,9 +20,6 @@ class ArrayList {
   friend class SerialArrayListAdapter;
 
  public:
-  static const uint8_t INTERFACE_ID = CLASS_ID::ARRAY_LIST;
-  static const ReturnValue_t FULL = MAKE_RETURN_CODE(0x01);
-
   /**
    * This is the allocating constructor.
    * It allocates an array of the specified size.
@@ -187,7 +185,7 @@ class ArrayList {
    */
   ReturnValue_t insert(T entry) {
     if (size >= maxSize_) {
-      return FULL;
+      return containers::LIST_FULL;
     }
     entries[size] = entry;
     ++size;
diff --git a/src/fsfw/container/FixedMap.h b/src/fsfw/container/FixedMap.h
index def219d1..ce90d814 100644
--- a/src/fsfw/container/FixedMap.h
+++ b/src/fsfw/container/FixedMap.h
@@ -4,8 +4,8 @@
 #include <type_traits>
 #include <utility>
 
-#include "../returnvalues/returnvalue.h"
 #include "ArrayList.h"
+#include "definitions.h"
 
 /**
  * @brief    Map implementation for maps with a pre-defined size.
@@ -24,11 +24,6 @@ class FixedMap : public SerializeIF {
                 "derived class from SerializeIF to be serialize-able");
 
  public:
-  static const uint8_t INTERFACE_ID = CLASS_ID::FIXED_MAP;
-  static const ReturnValue_t KEY_ALREADY_EXISTS = MAKE_RETURN_CODE(0x01);
-  static const ReturnValue_t MAP_FULL = MAKE_RETURN_CODE(0x02);
-  static const ReturnValue_t KEY_DOES_NOT_EXIST = MAKE_RETURN_CODE(0x03);
-
  private:
   static const key_t EMPTY_SLOT = -1;
   ArrayList<std::pair<key_t, T>, uint32_t> theMap;
@@ -76,10 +71,10 @@ class FixedMap : public SerializeIF {
 
   ReturnValue_t insert(key_t key, T value, Iterator* storedValue = nullptr) {
     if (exists(key) == returnvalue::OK) {
-      return KEY_ALREADY_EXISTS;
+      return containers::KEY_ALREADY_EXISTS;
     }
     if (_size == theMap.maxSize()) {
-      return MAP_FULL;
+      return containers::MAP_FULL;
     }
     theMap[_size].first = key;
     theMap[_size].second = value;
@@ -93,7 +88,7 @@ class FixedMap : public SerializeIF {
   ReturnValue_t insert(std::pair<key_t, T> pair) { return insert(pair.first, pair.second); }
 
   ReturnValue_t exists(key_t key) const {
-    ReturnValue_t result = KEY_DOES_NOT_EXIST;
+    ReturnValue_t result = containers::KEY_DOES_NOT_EXIST;
     if (findIndex(key) < _size) {
       result = returnvalue::OK;
     }
@@ -103,7 +98,7 @@ class FixedMap : public SerializeIF {
   ReturnValue_t erase(Iterator* iter) {
     uint32_t i;
     if ((i = findIndex((*iter).value->first)) >= _size) {
-      return KEY_DOES_NOT_EXIST;
+      return containers::KEY_DOES_NOT_EXIST;
     }
     theMap[i] = theMap[_size - 1];
     --_size;
@@ -114,7 +109,7 @@ class FixedMap : public SerializeIF {
   ReturnValue_t erase(key_t key) {
     uint32_t i;
     if ((i = findIndex(key)) >= _size) {
-      return KEY_DOES_NOT_EXIST;
+      return containers::KEY_DOES_NOT_EXIST;
     }
     theMap[i] = theMap[_size - 1];
     --_size;
diff --git a/src/fsfw/container/definitions.h b/src/fsfw/container/definitions.h
new file mode 100644
index 00000000..b50ea45d
--- /dev/null
+++ b/src/fsfw/container/definitions.h
@@ -0,0 +1,14 @@
+#ifndef FSFW_CONTAINER_DEFINITIONS_H_
+#define FSFW_CONTAINER_DEFINITIONS_H_
+
+#include "fsfw/retval.h"
+
+namespace containers {
+static const ReturnValue_t KEY_ALREADY_EXISTS = returnvalue::makeCode(CLASS_ID::FIXED_MAP, 0x01);
+static const ReturnValue_t MAP_FULL = returnvalue::makeCode(CLASS_ID::FIXED_MAP, 0x02);
+static const ReturnValue_t KEY_DOES_NOT_EXIST = returnvalue::makeCode(CLASS_ID::FIXED_MAP, 0x03);
+
+static const ReturnValue_t LIST_FULL = returnvalue::makeCode(CLASS_ID::ARRAY_LIST, 0x01);
+}  // namespace containers
+
+#endif /* FSFW_CONTAINER_DEFINITIONS_H_ */
diff --git a/unittests/container/TestArrayList.cpp b/unittests/container/TestArrayList.cpp
index 69b08faa..0c327685 100644
--- a/unittests/container/TestArrayList.cpp
+++ b/unittests/container/TestArrayList.cpp
@@ -43,7 +43,7 @@ TEST_CASE("Array List", "[containers]") {
     for (auto i = 0; i < 20; i++) {
       REQUIRE(list.insert(i) == static_cast<int>(returnvalue::OK));
     }
-    REQUIRE(list.insert(20) == static_cast<int>(ArrayList<uint16_t>::FULL));
+    REQUIRE(list.insert(20) == static_cast<int>(containers::LIST_FULL));
     ArrayList<uint16_t>::Iterator it = list.begin();
     REQUIRE((*it) == 0);
     it++;
diff --git a/unittests/container/TestFixedArrayList.cpp b/unittests/container/TestFixedArrayList.cpp
index 876d6792..f3131c64 100644
--- a/unittests/container/TestFixedArrayList.cpp
+++ b/unittests/container/TestFixedArrayList.cpp
@@ -31,7 +31,7 @@ TEST_CASE("FixedArrayList Tests", "[containers]") {
     for (auto i = 1; i < 260; i++) {
       REQUIRE(list.insert(i) == static_cast<int>(returnvalue::OK));
     }
-    REQUIRE(list.insert(260) == static_cast<int>(ArrayList<uint32_t, uint16_t>::FULL));
+    REQUIRE(list.insert(260) == static_cast<int>(containers::LIST_FULL));
     list.clear();
     REQUIRE(list.size == 0);
   }
diff --git a/unittests/container/TestFixedMap.cpp b/unittests/container/TestFixedMap.cpp
index 8bfe9fed..83ff975d 100644
--- a/unittests/container/TestFixedMap.cpp
+++ b/unittests/container/TestFixedMap.cpp
@@ -7,6 +7,8 @@
 
 template class FixedMap<unsigned int, unsigned short>;
 
+using namespace returnvalue;
+
 TEST_CASE("FixedMap Tests", "[containers]") {
   INFO("FixedMap Tests");
 
@@ -24,9 +26,9 @@ TEST_CASE("FixedMap Tests", "[containers]") {
       REQUIRE(map.find(i)->second == i + 1);
       REQUIRE(not map.empty());
     }
-    REQUIRE(map.insert(0, 0) == static_cast<int>(FixedMap<uint32_t, uint16_t>::KEY_ALREADY_EXISTS));
-    REQUIRE(map.insert(31, 0) == static_cast<int>(FixedMap<uint32_t, uint16_t>::MAP_FULL));
-    REQUIRE(map.exists(31) == static_cast<int>(FixedMap<uint32_t, uint16_t>::KEY_DOES_NOT_EXIST));
+    REQUIRE(map.insert(0, 0) == static_cast<int>(containers::KEY_ALREADY_EXISTS));
+    REQUIRE(map.insert(31, 0) == static_cast<int>(containers::MAP_FULL));
+    REQUIRE(map.exists(31) == static_cast<int>(containers::KEY_DOES_NOT_EXIST));
     REQUIRE(map.size() == 30);
     REQUIRE(map.full());
     {
@@ -34,15 +36,14 @@ TEST_CASE("FixedMap Tests", "[containers]") {
       REQUIRE(map.find(5, &ptr) == static_cast<int>(returnvalue::OK));
       REQUIRE(*ptr == 6);
       REQUIRE(*(map.findValue(6)) == 7);
-      REQUIRE(map.find(31, &ptr) ==
-              static_cast<int>(FixedMap<uint32_t, uint16_t>::KEY_DOES_NOT_EXIST));
+      REQUIRE(map.find(31, &ptr) == static_cast<int>(containers::KEY_DOES_NOT_EXIST));
     }
 
     REQUIRE(map.getSerializedSize() ==
             (sizeof(uint32_t) + 30 * (sizeof(uint32_t) + sizeof(uint16_t))));
     REQUIRE(map.erase(2) == static_cast<int>(returnvalue::OK));
-    REQUIRE(map.erase(31) == static_cast<int>(FixedMap<uint32_t, uint16_t>::KEY_DOES_NOT_EXIST));
-    REQUIRE(map.exists(2) == static_cast<int>(FixedMap<uint32_t, uint16_t>::KEY_DOES_NOT_EXIST));
+    REQUIRE(map.erase(31) == static_cast<int>(containers::KEY_DOES_NOT_EXIST));
+    REQUIRE(map.exists(2) == static_cast<int>(containers::KEY_DOES_NOT_EXIST));
     REQUIRE(map.size() == 29);
 
     for (auto element : map) {
@@ -79,8 +80,7 @@ TEST_CASE("FixedMap Tests", "[containers]") {
     REQUIRE(map.insert(37, 38, nullptr) == static_cast<int>(returnvalue::OK));
     REQUIRE(map.find(37)->second == 38);
     REQUIRE(map.size() == 2);
-    REQUIRE(map.insert(37, 24, nullptr) ==
-            static_cast<int>(FixedMap<uint32_t, uint16_t>::KEY_ALREADY_EXISTS));
+    REQUIRE(map.insert(37, 24, nullptr) == static_cast<int>(containers::KEY_ALREADY_EXISTS));
     REQUIRE(map.find(37)->second != 24);
     REQUIRE(map.size() == 2);
   };
@@ -137,7 +137,7 @@ TEST_CASE("FixedMap Tests", "[containers]") {
     FixedMap<uint32_t, uint16_t>::Iterator it;
     std::pair<uint32_t, uint16_t> pair = std::make_pair(44, 43);
     it = FixedMap<uint32_t, uint16_t>::Iterator(&pair);
-    REQUIRE(map.erase(&it) == static_cast<int>(FixedMap<uint32_t, uint16_t>::KEY_DOES_NOT_EXIST));
+    REQUIRE(map.erase(&it) == static_cast<int>(containers::KEY_DOES_NOT_EXIST));
     REQUIRE(map.find(45) == map.end());
     size_t toLargeMap = 100;
     const uint8_t* ptr = reinterpret_cast<uint8_t*>(&toLargeMap);