diff --git a/LibAPRS/LibAPRS.h b/LibAPRS/LibAPRS.h
index 4881d84..d003940 100644
--- a/LibAPRS/LibAPRS.h
+++ b/LibAPRS/LibAPRS.h
@@ -8,6 +8,15 @@
 #include "AFSK.h"
 #include "AX25.h"
 
+#define MICE_STD_MSG_OFF_DUTY 0x07
+#define MICE_STD_MSG_EN_ROUTE 0x06
+#define MICE_STD_MSG_IN_SERVICE 0x05
+#define MICE_STD_MSG_RETURNING 0x04
+#define MICE_STD_MSG_COMMITTED 0x03
+#define MICE_STD_MSG_SPECIAL 0x02
+#define MICE_STD_MSG_PRIORITY 0x01
+#define MICE_STD_MSG_EMERGENCY 0x00
+
 void APRS_init(int reference, bool open_squelch);
 void APRS_poll(void);