Index: firmware/App/Modes/ModePreTreat.c
===================================================================
diff -u -rb6b733b8d1f25bc2dbe2a94c620cd80aa3ae06f7 -rbbf4e1a170f66ce07af12908a1d0fe101a934e9e
--- firmware/App/Modes/ModePreTreat.c	(.../ModePreTreat.c)	(revision b6b733b8d1f25bc2dbe2a94c620cd80aa3ae06f7)
+++ firmware/App/Modes/ModePreTreat.c	(.../ModePreTreat.c)	(revision bbf4e1a170f66ce07af12908a1d0fe101a934e9e)
@@ -39,6 +39,8 @@
 // ********** private data **********
 
 static BOOL treatStartReqReceived = FALSE;                              ///< Flag indicates user requests treatment begin.
+static BOOL confirmInstallRequested = FALSE;                            ///< Flag indicates user confirms disposable installation.
+
 static BOOL alarmActionStopReceived = FALSE;                            ///< Flag indicates an alarm w/ stop property was triggered.
 static BOOL alarmActionResumeReceived = FALSE;                          ///< Flag indicates alarm action resume received.
 
@@ -156,6 +158,22 @@
 
 /*********************************************************************//**
  * @brief
+ * The signalUserConfirmInstallation function handles user confirmation of
+ * disposable installation.
+ * @details Inputs: none
+ * @details Outputs: treatStartReqReceived, send response to treatment start
+ * @return TRUE if signal accepted, FALSE if not
+ *************************************************************************/
+void signalUserConfirmInstallation( void )
+{
+    if ( ( MODE_PRET == getCurrentOperationMode() ) && ( HD_PRE_TREATMENT_CART_INSTALL_STATE == currentPreTreatmentState ) )
+    {
+        confirmInstallRequested = TRUE;
+    }
+}
+
+/*********************************************************************//**
+ * @brief
  * The signalUserBeginningTreatment function handles user start of a
  * treatment.
  * @details Inputs: none
@@ -251,6 +269,8 @@
 static void resetSignalFlags( void )
 {
     treatStartReqReceived = FALSE;
+    confirmInstallRequested = FALSE;
+
     alarmActionStopReceived = FALSE;
     alarmActionResumeReceived = FALSE;
 }
@@ -324,9 +344,12 @@
 {
     HD_PRE_TREATMENT_MODE_STATE_T state = HD_PRE_TREATMENT_CART_INSTALL_STATE;
 
-    // TODO: handle install verification and transition
-    transitionToDrySelfTests();
-    state = HD_PRE_TREATMENT_SELF_TEST_DRY_STATE;
+    if ( TRUE == confirmInstallRequested )
+    {
+        confirmInstallRequested = FALSE;
+        state = HD_PRE_TREATMENT_SELF_TEST_DRY_STATE;
+        transitionToDrySelfTests();
+    }
 
     return state;
 }