NOTAMs

A NOTAM is a notice that contains information concerning the establishment or condition of, or any changes in, any aeronautical facility, service, procedure, or hazard, the timely knowledge of which is essential to personnel involved in flight operations. A NOTAM is originated and issued promptly whenever the information to be distributed is of a temporary nature and of short duration, or when operationally significant permanent changes or temporary changes of long duration are made at short notice, except for extensive text and/or graphics. NOTAMs are distributed by teletype on the aeronautical fixed service (AFS) or by voice advisory using radio communications. NOTAMs can be used to advertise changes to the information on aeronautical charts or in aeronautical information publications.

All Canadian NOTAMs, with the exception of the runway surface condition NOTAM (NOTAMJ), are presented in the internationally recognized format prescribed by Annex 15 to the Convention on International Civil Aviation. This format bases its dissemination on series and comprises “items” (fields) that are used for parsing based on user requirements. Not all items are mandatory or permissible.

Hover over a part of the NOTAM to learn more