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United States Department of Transportation United States Department of Transportation

Advisory Circulars (ACs)

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Number, title, description, or office

Advisory Circulars (ACs) search results
Number Title Status Office Date
91-79B Aircraft Landing Performance and Runway Excursion Mitigation

This AC provides ways to identify, understand, and manage the risks associated with the landing phase of flight.

Active AFS-200,800 2023-08-28
90-91K North American Route Program

Provides guidance to users of the National Air Space System for participation in the North American Route Program (NRP).

Active AJR-1 2008-12-11
90-80C Approval of Offshore Standard Approach Procedures, Airborne Radar Approaches, and Helicopter En Route Descent Areas with Change 1

This AC provides operational approval information for operators conducting operations under Title 14 of the Code of Federal Regulations (14 CFR) parts 91, 91 subpart K (part 91K), and 135 to support issuance of operations specifications (OpSpec) or letters of authorization (LOA).

Active AFS-400 2017-12-21