US-FAA14 CFR 91.105
Flight crewmembers at stations
Read the official ruleIn plain English
Required flight crew must be at their stations during takeoff, landing and en route — except when away for flight duties or physiological needs — with the seat belt fastened, and the shoulder harness fastened for takeoff and landing if one is installed.
Key points
- Be at your crew station for takeoff, landing and en route (except for duties or physiological needs).
- Keep the seat belt fastened while at the station.
- Keep the shoulder harness fastened for takeoff and landing if installed (unless it impedes required duties).
Common pitfalls
- Loosening belts or harness too early on approach.
Summary: Required crew stay at their stations with seat belts fastened (and shoulder harness for takeoff/landing if installed), except when flight duties or physiological needs require otherwise.
This is an original plain-English explanation for training and reference, not legal advice and not for navigation. Always rely on the current official rule linked above. Last reviewed June 2, 2026.