Commercial Space Advisory Circulars (ACs)
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Advisory Circular: AC 413.13-1 - Guidance on Submitting a Complete Enough and Complete Application for a Vehicle Operator License
Issued: 12/18/2023
AC: PDF
Advisory Circular: AC 431.35-2A - Reusable Launch and Reentry Vehicle System Safety Process
Issued: 7/20/2005
Advisory Circular: AC 437.55-1 - Hazard Analysis for the Launch or Reentry of a Reusable Suborbital Rocket Under an Experimental Permit
Issued: 4/20/2007
Advisory Circular: AC 437.73-1 - Anomaly Reporting and Corrective Action for a Reusable Suborbital Rocket Operating Under an Experimental Permit
Issue Date: 4/20/2007
450.101-1B High Consequence Event Protection
Revision B Issued 4/9/2024
Revision A Issued 5/20/2021
Workshop Slides: PDF
Workshop Video: Video
450.103-1 Safety System Program
Issued: 9/7/2021
10/13/2021 Workshop Slides: PDF
10/13/2021 Workshop Video: Video
5/9/2023 Workshop Slides: PDF
5/9/2023 Workshop Video: Video
450.107-1 Hazard Control Strategies
Issued: 7/27/2021
6/23/2021 Workshop Slides: PDF
5/11/2023 Workshop Slides: PDF
5/11/2023 Workshop Video: Video
450.108-1 Flight Abort Rule Development
Issued: 7/27/2021
Workshop Slides: PDF
Workshop Video: Video
Advisory Circular: 450.109-1 Flight Hazard Analysis
Issued: 8/05/2021
8/25/2021 Workshop Slides: PDF
8/25/2021 Workshop Video: Video
5/16/2023 Workshop Slides: PDF
5/16/2023 Workshop Video: Video
Advisory Circular: 450.110-1 Physical Containment as a Hazard Control Strategy
Issued: 9/27/2022
AC: PDF
AC 450.115-1B High Fidelity Flight Safety Analysis
Issued: 8/2/2024
AC 450.115-2 Describing Flight Safety Analysis Methods
Issued: 9/20/2024
Advisory Circular: 450.117-1 Trajectory Analysis for Normal Flight
Issued: 8/19/2021
Workshop Slides: PDF
Workshop Video: Video
Advisory Circular: AC 450.137-1 De Minimis Far Field Overpressure Blast Effects Analysis
Issued: 9/10/2024
AC: PDF
Advisory Circular: 450.141-1A Computing Systems and Software
Issued: 8/18/2021
AC: PDF
5/18/2023 Workshop Slides: PDF
5/18/2023 Workshop Video: Video
Advisory Circular: 450.167-1 Tracking for Launch and Reentry Safety Analysis
Issued: 9/29/2022
AC: PDF
Advisory Circular: AC 450.169-1 - Launch and Reentry Collision Avoidance Analysis
Issued: 8/10/2023
Advisory Circular: 450.173-1 Part 450 Mishap Plan – Reporting, Response, and Investigation Requirements
Issued: 8/12/2021
Workshop Slides: PDF
Workshop Video: Video
Advisory Circular: 450.179-1 Ground Safety
Issued: 9/22/2021
Workshop Slides: PDF
Workshop Video: Video
Advisory Circular: 450.3-1 Definition of Launch and Scope of a Vehicle Operator License
Issued: 9/28/2022
AC: PDF
Advisory Circular: AC 450.31-1 - Applying for FAA Determination on Policy or Payload Reviews
Issued: 8/10/2023
AC: PDF
Advisory Circular: AC 450.45-1 - Launch and Reentry of Space Nuclear Systems
Issued: 10/20/2023
AC: PDF
Advisory Circular: AC 450.45-2 - Compliance when Contracting with a Federal Entity
Issue Date: 3/11/2025
Advisory Circular: AC 460.15-1 - Human Factors Considerations in Commercial Space Flight
Issued: 8/12/2024
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The FAA seeks public comment on each of these documents for a period of 30 days when issued. 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 emailing the form to astapplications@faa.gov. Please include the AC number/title in the subject line.