A classification of aviation maintenance personnel certification included in the proposed 14 CFR Part 66 (Aviation Maintenance Personnel). AMT certification indicates that the holder is authorized to perform certain maintenance and inspection functions on airframes and powerplants certificated in the United States.

An AMT certificate with an Aircraft rating replaces the Mechanic certificate with Airframe and Powerplant ratings issued under 14 CFR Part 65 (Airmen Other Than Flight Crewmembers).