diff --git a/src/fsfw/controller/ExtendedControllerBase.cpp b/src/fsfw/controller/ExtendedControllerBase.cpp
index 961a4f63..e03c7cba 100644
--- a/src/fsfw/controller/ExtendedControllerBase.cpp
+++ b/src/fsfw/controller/ExtendedControllerBase.cpp
@@ -80,4 +80,6 @@ ReturnValue_t ExtendedControllerBase::performOperation(uint8_t opCode) {
   return returnvalue::OK;
 }
 
-MessageQueueId_t ExtendedControllerBase::getCommandQueue() const { return commandQueue->getId(); }
\ No newline at end of file
+MessageQueueId_t ExtendedControllerBase::getCommandQueue() const { return commandQueue->getId(); }
+
+datapool::SharedPool *ExtendedControllerBase::getOptionalSharedPool() { return nullptr; }
\ No newline at end of file
diff --git a/src/fsfw/controller/ExtendedControllerBase.h b/src/fsfw/controller/ExtendedControllerBase.h
index 23afe7b7..47824ea9 100644
--- a/src/fsfw/controller/ExtendedControllerBase.h
+++ b/src/fsfw/controller/ExtendedControllerBase.h
@@ -33,6 +33,13 @@ class ExtendedControllerBase : public ControllerBase,
   hk::PeriodicHelper hkHelper;
   ActionHelper actionHelper;
 
+  // Periodic HK methods, default method assumes that no shared pool is required.
+  virtual datapool::SharedPool* getOptionalSharedPool() override;
+
+  // Periodic HK abstract methods.
+  ReturnValue_t serializeHkDataset(dp::sid_t structureId, uint8_t* buf, size_t maxSize) = 0;
+  ReturnValue_t specifyHkDatasets(std::vector<hk::SetSpecification>& setList) = 0;
+
   /**
    * Implemented by child class. Handle all command messages which are
    * not health, mode, action or housekeeping messages.
diff --git a/src/fsfw/datapool/definitions.h b/src/fsfw/datapool/definitions.h
index cee79e80..eacab98a 100644
--- a/src/fsfw/datapool/definitions.h
+++ b/src/fsfw/datapool/definitions.h
@@ -16,7 +16,7 @@ using id_t = uint32_t;
 
 static constexpr uint32_t INVALID_LPID = -1;
 
-static constexpr uint8_t INTERFACE_ID = CLASS_ID::LOCAL_POOL_OWNER_IF;
+static constexpr uint8_t INTERFACE_ID = CLASS_ID::DATAPOOL_IF;
 
 static constexpr ReturnValue_t POOL_ENTRY_NOT_FOUND = MAKE_RETURN_CODE(0x00);
 static constexpr ReturnValue_t POOL_ENTRY_TYPE_CONFLICT = MAKE_RETURN_CODE(0x01);
diff --git a/src/fsfw/devicehandlers/FreshDeviceHandlerBase.cpp b/src/fsfw/devicehandlers/FreshDeviceHandlerBase.cpp
index d6bd6a55..a245fa5f 100644
--- a/src/fsfw/devicehandlers/FreshDeviceHandlerBase.cpp
+++ b/src/fsfw/devicehandlers/FreshDeviceHandlerBase.cpp
@@ -189,3 +189,5 @@ ReturnValue_t FreshDeviceHandlerBase::getParameter(uint8_t domainId, uint8_t uni
   }
   return INVALID_DOMAIN_ID;
 }
+
+datapool::SharedPool* FreshDeviceHandlerBase::getOptionalSharedPool() { return nullptr; }
\ No newline at end of file
diff --git a/src/fsfw/devicehandlers/FreshDeviceHandlerBase.h b/src/fsfw/devicehandlers/FreshDeviceHandlerBase.h
index 6ccc0bd3..b0348a9f 100644
--- a/src/fsfw/devicehandlers/FreshDeviceHandlerBase.h
+++ b/src/fsfw/devicehandlers/FreshDeviceHandlerBase.h
@@ -104,6 +104,13 @@ class FreshDeviceHandlerBase : public SystemObject,
   // System Object overrides.
   ReturnValue_t initialize() override;
 
+  // Default implementation assumes that no optional shared pool is required.
+  virtual datapool::SharedPool* getOptionalSharedPool();
+
+  // Implemented by child, required for periodic HK.
+  ReturnValue_t serializeHkDataset(dp::sid_t structureId, uint8_t* buf, size_t maxSize) = 0;
+  ReturnValue_t specifyHkDatasets(std::vector<hk::SetSpecification>& setList) = 0;
+
   /**
    * Implemented by child class. Handle all command messages which are
    * not health, mode, action or housekeeping messages.
diff --git a/src/fsfw/housekeeping/GeneratesPeriodicHkIF.h b/src/fsfw/housekeeping/GeneratesPeriodicHkIF.h
index ab8fe41b..339ee087 100644
--- a/src/fsfw/housekeeping/GeneratesPeriodicHkIF.h
+++ b/src/fsfw/housekeeping/GeneratesPeriodicHkIF.h
@@ -50,7 +50,6 @@ class GeneratesPeriodicHkIF {
   static constexpr uint32_t INVALID_LPID = dp::INVALID_LPID;
 
   virtual ReturnValue_t serializeHkDataset(dp::sid_t structureId, uint8_t* buf, size_t maxSize) = 0;
-
   virtual ReturnValue_t specifyHkDatasets(std::vector<hk::SetSpecification>& setList) = 0;
 
   /**
diff --git a/src/fsfw/housekeeping/PeriodicHkHelper.cpp b/src/fsfw/housekeeping/PeriodicHkHelper.cpp
index e690ebff..3949045d 100644
--- a/src/fsfw/housekeeping/PeriodicHkHelper.cpp
+++ b/src/fsfw/housekeeping/PeriodicHkHelper.cpp
@@ -122,9 +122,9 @@ ReturnValue_t PeriodicHelper::handleHousekeepingMessage(CommandMessage* message)
 
   CommandMessage reply;
   if (result != returnvalue::OK) {
-    if (result == WRONG_HK_PACKET_TYPE) {
+    if (result == INVALID_HK_REQUEST) {
       printWarningOrError(sif::OutputTypes::OUT_WARNING, "handleHousekeepingMessage",
-                          WRONG_HK_PACKET_TYPE);
+                          INVALID_HK_REQUEST);
     }
     HousekeepingMessage::setHkRequestFailureReply(&reply, sid, result);
   } else {
@@ -353,10 +353,8 @@ void PeriodicHelper::printWarningOrError(sif::OutputTypes outputType, const char
   if (errorPrint == nullptr) {
     if (error == DATASET_NOT_FOUND) {
       errorPrint = "Dataset not found";
-    } else if (error == POOLOBJECT_NOT_FOUND) {
-      errorPrint = "Pool Object not found";
-    } else if (error == WRONG_HK_PACKET_TYPE) {
-      errorPrint = "Wrong Packet Type";
+    } else if (error == INVALID_HK_REQUEST) {
+      errorPrint = "Invalid HK request";
     } else if (error == returnvalue::FAILED) {
       if (outputType == sif::OutputTypes::OUT_WARNING) {
         errorPrint = "Generic Warning";
diff --git a/src/fsfw/housekeeping/PeriodicHkHelper.h b/src/fsfw/housekeeping/PeriodicHkHelper.h
index 837bb751..92d72944 100644
--- a/src/fsfw/housekeeping/PeriodicHkHelper.h
+++ b/src/fsfw/housekeeping/PeriodicHkHelper.h
@@ -49,15 +49,6 @@ class PeriodicHelper : public PeriodicHelperIF {
   friend class SharedPoolAttorney;
 
  public:
-  static constexpr uint8_t INTERFACE_ID = CLASS_ID::HOUSEKEEPING_MANAGER;
-
-  static constexpr ReturnValue_t QUEUE_OR_DESTINATION_INVALID = MAKE_RETURN_CODE(0);
-  static constexpr ReturnValue_t WRONG_HK_PACKET_TYPE = MAKE_RETURN_CODE(1);
-  static constexpr ReturnValue_t REPORTING_STATUS_UNCHANGED = MAKE_RETURN_CODE(2);
-  static constexpr ReturnValue_t PERIODIC_HELPER_INVALID = MAKE_RETURN_CODE(3);
-  static constexpr ReturnValue_t POOLOBJECT_NOT_FOUND = MAKE_RETURN_CODE(4);
-  static constexpr ReturnValue_t DATASET_NOT_FOUND = MAKE_RETURN_CODE(5);
-
   /**
    * This constructor is used by a class which wants to implement
    * a personal local data pool. The queueToUse can be supplied if it
diff --git a/src/fsfw/housekeeping/definitions.h b/src/fsfw/housekeeping/definitions.h
index d832f9cf..98b68e06 100644
--- a/src/fsfw/housekeeping/definitions.h
+++ b/src/fsfw/housekeeping/definitions.h
@@ -11,6 +11,12 @@
 
 namespace hk {
 
+static constexpr uint8_t INTERFACE_ID = CLASS_ID::PERIODIC_HK_IF;
+
+static constexpr ReturnValue_t DATASET_NOT_FOUND = MAKE_RETURN_CODE(0);
+static constexpr ReturnValue_t QUEUE_OR_DESTINATION_INVALID = MAKE_RETURN_CODE(1);
+static constexpr ReturnValue_t INVALID_HK_REQUEST = MAKE_RETURN_CODE(2);
+
 /**
  * Different types of housekeeping reporting are possible.
  *  1. PERIODIC:
diff --git a/src/fsfw/returnvalues/FwClassIds.h b/src/fsfw/returnvalues/FwClassIds.h
index 9a4fa992..45a1c3f7 100644
--- a/src/fsfw/returnvalues/FwClassIds.h
+++ b/src/fsfw/returnvalues/FwClassIds.h
@@ -68,9 +68,9 @@ enum : uint8_t {
   MUTEX_IF,                       // MUX
   MESSAGE_QUEUE_IF,               // MQI
   SEMAPHORE_IF,                   // SPH
-  LOCAL_POOL_OWNER_IF,            // LPIF
+  DATAPOOL_IF,                    // LPIF
   POOL_VARIABLE_IF,               // PVA
-  HOUSEKEEPING_MANAGER,           // HKM
+  PERIODIC_HK_IF,                 // HKM
   DLE_ENCODER,                    // DLEE
   PUS_SERVICE_3,                  // PUS3
   PUS_SERVICE_9,                  // PUS9