ICAO Annex 15
6.3 Aeronautical information product updates
6.3.1 AIP updates
6.3.1.1 The aeronautical information publication (AIP) shall be amended or reissued at such regular intervals as may be necessary to keep it up to date.
6.3.1.2 Permanent changes to the AIP shall be published as AIP Amendments.
6.3.1.3 Temporary changes of long duration (three months or longer) and information of short duration which contains extensive text and/or graphics shall be published as AIP Supplements.
Permanent changes → AIP Amendments
Temporary changes → AIP Supplements
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