FAA

FAA (Federal Aviation Administration) is the US government agency responsible for regulating civil aviation, including air traffic management, aircraft certification, pilot licensing, and airport standards. Part of the Department of Transportation, the FAA is headquartered in Washington, D.C.

Key FAA regulations (Title 14 CFR): Part 61 (pilot certification), Part 91 (general flight rules), Part 121 (airline operations), Part 135 (commuter/on-demand), Part 139 (airport certification).