Data / Federal rules / 2025-08496
Agency Advisory Circular: Reduced Reliability Flight Safety System Design, Test, and Documentation
The Federal Aviation Administration published this proposed rule in the Federal Register on May 14, 2025. Comments closed on June 13, 2025.
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What the agency says
FAA invites public comments about our intention to publish an advisory circular. This Advisory Circular (AC) provides guidance to demonstrate compliance with the design, test, and documentation requirements for a Reduced Reliability Flight Safety System (RRFSS) of commercial space launch or reentry vehicles. This AC presents one acceptable means of compliance (MOC), but this is not the only acceptable MOC. Launch and reentry license applicants may use this AC to guide their internal processes, format their license applications, or both.
Key facts
- Document number
- 2025-08496
- Type
- Proposed rule
- Action
- Notification and request for comments
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- May 14, 2025
- Comments due
- June 13, 2025
- Dates
- Written comments should be submitted by June 13, 2025.
- Docket
- Docket No. FAA-2025-0798
- Code of Federal Regulations
- 14 CFR 450
- Pages
- 11
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Everything from the Federal Aviation Administration · Published in May 2025
Read from the Federal Register API, last updated 2026-10-24. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.