NOTAM Code Amplification
NOTAM code groups should be amplified as necessary in order to increase clarity.
When using free text, both plain language and ICAO approved contractions outlined in
FAAO JO 7340.2 should be used to clearly express NOTAM conditions. See
OPNAVINST 3721.20 for additional guidance.
Table 7-12 describes the three different formats used to transmit NOTAM information:
NOTAMN New NOTAM sent as conditions warrant
NOTAMR Replacement NOTAM sent to update or correct an existing NOTAM
NOTAMC Cancellation NOTAM sent to cancel an existing NOTAM
Table 7-12 -- Transmitting NOTAMs
NOTAM Control Log
Comeback copies of NOTAMs should be retained for 15 days following the expiration or
cancellation of a published NOTAM.