Index: firmware/App/Modes/ModeInitPOST.c
===================================================================
diff -u -rddb9707d9e6e46c4b384782aeec20d41f3822996 -rc0375e039dd42ecf7b7d68ce7f2407e52dfe83eb
--- firmware/App/Modes/ModeInitPOST.c	(.../ModeInitPOST.c)	(revision ddb9707d9e6e46c4b384782aeec20d41f3822996)
+++ firmware/App/Modes/ModeInitPOST.c	(.../ModeInitPOST.c)	(revision c0375e039dd42ecf7b7d68ce7f2407e52dfe83eb)
@@ -31,6 +31,7 @@
 #include "Reservoirs.h"
 #include "ROPump.h"
 #include "RTC.h"
+#include "SafetyShutdown.h"
 #include "SystemCommMessages.h"
 #include "TemperatureSensors.h"
 #include "Thermistors.h"
@@ -197,7 +198,7 @@
             break;
 
         case DG_POST_STATE_SAFETY_SHUTDOWN:
-            testStatus = SELF_TEST_STATUS_PASSED;
+            testStatus = execSafetyShutdownTest();
             postState = handlePOSTStatus( testStatus );
             break;
 
Index: firmware/App/Services/SystemComm.c
===================================================================
diff -u -r22f1a58ac8e419353ec004b04e7c765c1d59df2b -rc0375e039dd42ecf7b7d68ce7f2407e52dfe83eb
--- firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision 22f1a58ac8e419353ec004b04e7c765c1d59df2b)
+++ firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision c0375e039dd42ecf7b7d68ce7f2407e52dfe83eb)
@@ -249,14 +249,6 @@
                     {
                         canTransmit( canREG1, lastCANPacketSentChannel, lastCANPacketSent );
                     }
-#ifdef DEBUG_ENABLED
-                    {
-                        char debugStr[100];
-                        strcpy( debugStr, "SystemComm-DG resend Last Frame.\n" );
-                        sendDebugData( (U08*)debugStr, strlen(debugStr) );
-                        sendDebugDataToUI( (U08*)debugStr );
-                    }
-#endif
                 }
                 // we must be only node on CAN bus - nobody is ACKing our transmitted frames
                 else
@@ -265,11 +257,6 @@
                     canXmitRetryCtr = MAX_XMIT_RETRIES;
                     signalCANXmitsCompleted();  // clear pending xmit flag
                     clearCANXmitBuffers();      // clear xmit buffers - nothing is going out right now
-#ifdef DEBUG_ENABLED
-                    char debugStr[100];
-                    strcpy( debugStr, "SystemComm-DG is only node.\n" );
-                    sendDebugData( (U08*)debugStr, strlen(debugStr) );
-#endif
                 } // end - are we retrying xmit or are we alone on CAN bus
             } // end - pending xmit timeout?
         } // end - transmit in progress or not
@@ -857,14 +844,6 @@
     {
         SET_ALARM_WITH_1_U32_DATA( ALARM_ID_COMM_TOO_MANY_BAD_CRCS, 2 );  // 2 for DG
     }
-#ifdef DEBUG_ENABLED
-    {
-        char debugStr[100];
-
-        strcpy( debugStr, "SystemComm-DG-Bad Msg CRC.\n" );
-        sendDebugDataToUI( (U08*)debugStr );
-    }
-#endif
 }
 
 /*********************************************************************//**
@@ -1054,6 +1033,10 @@
             handleUIClockSyncRequest( message );
             break;
 
+        case MSG_ID_HD_DG_POST_RESULT_REQUEST:
+            handleDGPOSTResultRequest( message );
+            break;
+
         case MSG_ID_UI_REQUEST_SERVICE_INFO:
             handleDGServiceScheduleRequest( message );
             break;
@@ -1293,6 +1276,10 @@
                 handleFansRPMOverride( message );
                 break;
 
+            case MSG_ID_DG_OP_MODE_PUBLISH_INTERVAL_OVERRIDE:
+                handleSetDGOpModeBroadcastIntervalOverrideRequest( message );
+                break;
+
             default:
                 // TODO - unrecognized message ID received - ignore
                 break;
Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -r22f1a58ac8e419353ec004b04e7c765c1d59df2b -rc0375e039dd42ecf7b7d68ce7f2407e52dfe83eb
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 22f1a58ac8e419353ec004b04e7c765c1d59df2b)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision c0375e039dd42ecf7b7d68ce7f2407e52dfe83eb)
@@ -3129,6 +3129,38 @@
 
 /*********************************************************************//**
 * @brief
+* The handleSetDGOpModeBroadcastIntervalOverrideRequest function handles a request
+* to override the publish interval of the DG operation mode.
+* @details Inputs: none
+* @details Outputs: message handled
+* @param message a pointer to the message to handle
+* @return none
+*************************************************************************/
+BOOL handleSetDGOpModeBroadcastIntervalOverrideRequest( MESSAGE_T *message )
+{
+    TEST_OVERRIDE_PAYLOAD_T payload;
+    BOOL result = FALSE;
+
+    // verify payload length
+    if ( sizeof( TEST_OVERRIDE_PAYLOAD_T ) == message->hdr.payloadLen )
+    {
+        memcpy( &payload, message->payload, sizeof( TEST_OVERRIDE_PAYLOAD_T ) );
+        if ( FALSE == payload.reset )
+        {
+            result = testSetDGOpModePublishIntervalOverride( payload.state.u32 );
+        }
+        else
+        {
+            result = testResetDGOpModePublishIntervalOverride();
+        }
+    }
+
+    // respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
+}
+
+/*********************************************************************//**
+* @brief
 * The handleROPumpTargetPressureOverride function handles a request
 * to override the RO pump target pressure.
 * @details Inputs: none
@@ -3236,6 +3268,40 @@
 
 /*********************************************************************//**
 * @brief
+* The handleDGPOSTResultRequest function handles a request to report DG
+* POST results.
+* @details Inputs: none
+* @details Outputs: message handled
+* @param message a pointer to the message to handle
+* @return none
+*************************************************************************/
+void handleDGPOSTResultRequest( MESSAGE_T *message )
+{
+    BOOL status = FALSE;
+    BOOL result = FALSE;
+    U08* payloadPtr = message->payload;
+
+    if ( 0 == message->hdr.payloadLen )
+    {
+        if ( TRUE == isPOSTCompleted() )
+        {
+            status = TRUE;
+            if ( TRUE == isPOSTPassed() )
+            {
+                result = TRUE;
+            }
+            sendPOSTFinalResult( result );
+        }
+    }
+    // If can't respond to request, NAK the message
+    if ( status != TRUE )
+    {
+        sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, status );
+    }
+}
+
+/*********************************************************************//**
+* @brief
 * The handleSetDGCalibrationRecord function handles a request to set the DG
 * calibration data record.
 * @details Inputs: none
Index: firmware/App/Services/SystemCommMessages.h
===================================================================
diff -u -r22f1a58ac8e419353ec004b04e7c765c1d59df2b -rc0375e039dd42ecf7b7d68ce7f2407e52dfe83eb
--- firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision 22f1a58ac8e419353ec004b04e7c765c1d59df2b)
+++ firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision c0375e039dd42ecf7b7d68ce7f2407e52dfe83eb)
@@ -354,6 +354,9 @@
 // MSG_ID_UI_DG_SET_RTC_REQUEST
 void handleUIClockSyncRequest( MESSAGE_T *message );
 
+// MSG_ID_HD_DG_POST_RESULT_REQUEST
+void handleDGPOSTResultRequest( MESSAGE_T *message );
+
 // MSG_ID_DG_SET_CALIBRATION_DATA
 void handleSetDGCalibrationRecord( MESSAGE_T *message );
 
@@ -384,6 +387,9 @@
 // MSG_ID_FILTER_FLUSH_TIME_PERIOD_OVERRIDE
 void handleFilterFlushTimePeriodOverride( MESSAGE_T *message );
 
+// MSG_ID_DG_OP_MODE_PUBLISH_INTERVAL_OVERRIDE
+BOOL handleSetDGOpModeBroadcastIntervalOverrideRequest( MESSAGE_T *message );
+
 // MSG_ID_DG_FANS_RPM_OVERRIDE
 void handleFansRPMOverride( MESSAGE_T *message );