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United States Department of Transportation United States Department of Transportation

Advisory Circulars (ACs)

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Advisory Circulars (ACs) search results
Number Title Status Office Date
90-100A U.S Terminal and En Route Area Navigation (RNAV) Operations with Change 2

This advisory circular (AC) provides operational and airworthiness guidance for operation on U.S.

Active AFS-400 2007-03-01
90-108 Use of suitable Area navigation (RNAV) system on Conventional Routes and Procedures - Change 1

2">2">This advisory circular (AC) provides operational and airworthiness guidance regrading the suitablity 2">2">and use of RNAV systems while operating on or transitioning to, conventional i.e. non-RNAV, routes 2">2">and procedures within the United States (US) National Airspace System (NAS).

 Active AFS-400 2011-03-03
90-105A Approval Guidance for RNP Operations and Barometric Vertical Navigation in the U.S. National Airspace System and in Oceanic and Remote Continental Airspace

Guidance is provided for the following: • Required Navigation Performance Approach (RNP APCH) procedures; • Barometric vertical navigation (baro-VNAV); • RNP 1 (terminal) operations; • RNP 0.3 (rotorcraft) operations; • RNP 2 domestic, offshore, oceanic, and remote continental operations; • RNP 4 oceanic and remote continental operations; • RNP 10 (Area Navigation (RNAV) 10) oceanic and remote continental operations; • Advanced Required Navigation Performance (A-RNP), and • Additional Capabilities.

Active AFS-400 2016-03-07