Skip to page content
Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

The latest general information on the Coronavirus (COVID-19) is available on For FAA-specific COVID-19 resources, please visit
United States Department of TransportationUnited States Department of Transportation

Flight Operations Group

Oceanic and Remote Airspace (Special Areas of Operation)

If using Internet Explorer (IE), download PDF files by right-clicking on the link and selecting "Save target as…" Some PDF files on this page may cause IE to hang and/or crash.

Advisory Circular (AC) 91-70, "Oceanic and Remote Airspace Operations" contains general information and guidance for operators planning flights in oceanic and remote airspace, including authorizations needed for operations outside the continental United States. This includes Performance-based Navigation (PBN) and Special Areas of Operation (SAO). In all geographic regions, the evolution of communication, navigation, surveillance and air traffic management (CNS/ATM) is the catalyst for initiatives such as data link, RNP, RNAV, Automatic Dependent Surveillance (ADS), and RVSM. Additionally, the FAA identifies critical areas and procedures such as Strategic Lateral Offset Procedures (SLOP). The dynamics of oceanic and international operations are such that procedures change and therefore it is incumbent upon operators planning such flights to regularly review the appropriate guidance material to identify where changes have occurred.

Performance Based Navigation
Type of Operation Guidance Materials Approval Mechanism Additional Information
RCP AC 90-117 OPSEC/MSPEC/LOA Guidance A056 (PDF)
RSP AC 90-117 OPSEC/MSPEC/LOA Guidance A056 (PDF)
Oceanic and Remote AC 91-70B

AC 90-105A

OPSEC/MSPEC/LOA Guidance: B034, B036, B038, B039, B040, B041, B043, B343, B044, B046, B050, B054, B055, B059, B342, B344 (PDF)

Page last modified: