diff --git a/bacnet-stack/demo/object/ai.c b/bacnet-stack/demo/object/ai.c
index 135da111..d9089150 100644
--- a/bacnet-stack/demo/object/ai.c
+++ b/bacnet-stack/demo/object/ai.c
@@ -895,10 +895,8 @@ int Analog_Input_Event_Information(unsigned index,
         bitstring_set_bit(&getevent_data->eventEnable, TRANSITION_TO_NORMAL,
                 (AI_Descr[index].Event_Enable & EVENT_ENABLE_TO_NORMAL   ) ? true : false );
         /* Event Priorities */
-        /* FIXME: finish it */
-        getevent_data->eventPriorities[0] = 255;
-        getevent_data->eventPriorities[1] = 255;
-        getevent_data->eventPriorities[2] = 255;
+        Notification_Class_Get_Priorities(AI_Descr[index].Notification_Class,
+                getevent_data->eventPriorities);
 
         return 1;   /* active event */
     }
diff --git a/bacnet-stack/demo/object/av.c b/bacnet-stack/demo/object/av.c
index 71a7fe46..ba353904 100644
--- a/bacnet-stack/demo/object/av.c
+++ b/bacnet-stack/demo/object/av.c
@@ -1006,10 +1006,8 @@ int Analog_Value_Event_Information(unsigned index,
         bitstring_set_bit(&getevent_data->eventEnable, TRANSITION_TO_NORMAL,
                 (AV_Descr[index].Event_Enable & EVENT_ENABLE_TO_NORMAL   ) ? true : false );
         /* Event Priorities */
-        /* FIXME: finish it */
-        getevent_data->eventPriorities[0] = 255;
-        getevent_data->eventPriorities[1] = 255;
-        getevent_data->eventPriorities[2] = 255;
+        Notification_Class_Get_Priorities(AV_Descr[index].Notification_Class,
+                getevent_data->eventPriorities);
 
         return 1;   /* active event */
     }
diff --git a/bacnet-stack/demo/object/nc.c b/bacnet-stack/demo/object/nc.c
index e6dcdfae..ab474349 100644
--- a/bacnet-stack/demo/object/nc.c
+++ b/bacnet-stack/demo/object/nc.c
@@ -684,6 +684,28 @@ bool Notification_Class_Write_Property(
 }
 
 
+void Notification_Class_Get_Priorities(
+        uint32_t Object_Instance, uint32_t *pPriorityArray)
+{
+    NOTIFICATION_CLASS_INFO *CurrentNotify;
+    uint32_t object_index;
+    int i;
+
+    object_index = Notification_Class_Instance_To_Index(Object_Instance);
+
+    if (object_index < MAX_NOTIFICATION_CLASSES)
+        CurrentNotify = &NC_Info[object_index];
+    else {
+        for(i = 0; i < 3; i++)
+            pPriorityArray[i] = 255;
+        return; /* unknown object */
+    }
+
+    for(i = 0; i < 3; i++)
+        pPriorityArray[i] = CurrentNotify->Priority[i];
+}
+
+
 static bool IsRecipientActive(BACNET_DESTINATION * pBacDest, uint8_t EventToState)
 {
     BACNET_DATE_TIME DateTime;
diff --git a/bacnet-stack/demo/object/nc.h b/bacnet-stack/demo/object/nc.h
index 6ad6f86b..b7c09746 100644
--- a/bacnet-stack/demo/object/nc.h
+++ b/bacnet-stack/demo/object/nc.h
@@ -102,7 +102,10 @@ typedef struct Notification_Class_info {
             BACNET_READ_PROPERTY_DATA * rpdata);
 
     bool Notification_Class_Write_Property(
-            BACNET_WRITE_PROPERTY_DATA * wp_data);
+            BACNET_WRITE_PROPERTY_DATA * wp_data);
+
+    void Notification_Class_Get_Priorities(
+            uint32_t Object_Instance, uint32_t *pPriorityArray);
 
     void Notification_Class_common_reporting_function(
             BACNET_EVENT_NOTIFICATION_DATA * event_data);