NOTAM Code Format
The first letter (always Q) indicates that the next four letters are NOTAM codes (see
Figure 7-3).
Figure 7-3 -- NOTAM code format
The second and third letters identify the subject or components reported upon; e.g., NN
= UHF Omnidirectional Navigational Aid (TACAN) (see Figure 7-4).
Figure 7-4 -- NOTAM code format
The fourth and fifth letters denote the status or condition of operation; e.g., AU = not
available. Therefore, QNNAU is NOTAM code for "TACAN not available" (see Figure 7-
5).
Figure 7-5 -- NOTAM code format
Defense Internet NOTAM Service (DINS) Create, Cancel, or Replace (CCR) website
has comprehensive Q-code listings.
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