Commercial Space Advisory Circulars (ACs)

The Advisory Circular (AC) system provides a single, uniform, agency-wide system that the Federal Aviation Administration (FAA) uses to deliver advisory material to FAA customers, industry, the aviation and aerospace communities, and the public.

Commercial Space DRAFT Advisory Circulars (ACs)
The public has an opportunity to comment on DRAFT commercial space advisory circulars while they are on notice in the Federal Register. We will review all comments received and consider them for incorporation in the final document.

Published ACs

450 ACs Combined in one Portfolio PDF file for download is available here then click on the download icon. Download Icon

The FAA reviews comments on each of these published documents when received. The FAA will issue an updated version if warranted based on comments received. Each guidance document contains a feedback form with instructions on how to provide feedback at any time during the process. *Feedback for ACs may also be submitted via the AC feedback form (PDF) and by emailing the form to 9-ast-asz210-directives@faa.gov. Please include the AC number/title in the subject line.

Last updated: Wednesday, June 25, 2025