Index: firmware/App/Modes/ModePreTreat.c
===================================================================
diff -u -rb87bac344f39b289e83d4794fba4e53cf3dac94a -r835a6bfc7aa050b34e5fe24ca3ac3a14d1d36cd2
--- firmware/App/Modes/ModePreTreat.c	(.../ModePreTreat.c)	(revision b87bac344f39b289e83d4794fba4e53cf3dac94a)
+++ firmware/App/Modes/ModePreTreat.c	(.../ModePreTreat.c)	(revision 835a6bfc7aa050b34e5fe24ca3ac3a14d1d36cd2)
@@ -181,4 +181,27 @@
     return state;
 }
 
+/*********************************************************************//**
+ * @brief
+ * The signalAlarmActionToPreTreatmentMode function executes the given alarm action
+ * as appropriate while in Pre-Treatment Mode.
+ * @details \b Inputs: none
+ * @details \b Outputs: given alarm action executed
+ * @param action ID of alarm action to execute
+ * @return none
+ *************************************************************************/
+void signalAlarmActionToPreTreatmentMode( ALARM_ACTION_T action )
+{
+    switch ( action )
+    {
+        case ALARM_ACTION_STOP:
+            // TODO add logic once we have pre-treatment mode developed
+            break;
+
+        default:
+            // do not handle other actions in pre-treatment mode
+            break;
+    }
+}
+
 /**@}*/
Index: firmware/App/Modes/ModePreTreat.h
===================================================================
diff -u -r5c1ec2983f499cfba3d29f61408e16008b2288b1 -r835a6bfc7aa050b34e5fe24ca3ac3a14d1d36cd2
--- firmware/App/Modes/ModePreTreat.h	(.../ModePreTreat.h)	(revision 5c1ec2983f499cfba3d29f61408e16008b2288b1)
+++ firmware/App/Modes/ModePreTreat.h	(.../ModePreTreat.h)	(revision 835a6bfc7aa050b34e5fe24ca3ac3a14d1d36cd2)
@@ -36,7 +36,7 @@
 void initPreTreatmentMode( void );                                  // Initialize this module
 U32  transitionToPreTreatmentMode( void );                          // Prepares for transition to pre-treatment mode
 U32  execPreTreatmentMode( void );                                  // Execute the pre-treatment mode state machine (call from OperationModes)
-
+void signalAlarmActionToPreTreatmentMode( ALARM_ACTION_T action );  // Execute the
 /**@}*/
 
 #endif
Index: firmware/App/Modes/OperationModes.c
===================================================================
diff -u -reef41b7363d82763095a1317f1757f360f0d9ec1 -r835a6bfc7aa050b34e5fe24ca3ac3a14d1d36cd2
--- firmware/App/Modes/OperationModes.c	(.../OperationModes.c)	(revision eef41b7363d82763095a1317f1757f360f0d9ec1)
+++ firmware/App/Modes/OperationModes.c	(.../OperationModes.c)	(revision 835a6bfc7aa050b34e5fe24ca3ac3a14d1d36cd2)
@@ -319,9 +319,9 @@
         case MODE_STAN:
             signalAlarmActionToStandbyMode( action );
             break;
-//        case MODE_PRET:
-//            signalAlarmActionToPreTreatmentMode( action );
-//            break;
+        case MODE_PRET:
+            signalAlarmActionToPreTreatmentMode( action );
+            break;
         case MODE_TREA:
             signalAlarmActionToTreatmentMode( action );
             break;