The Transportation Security Administration is responsible for aviation security in the USA, including screening pilots and passengers
The Transportation Security Administration (TSA) is part of the US Department of Homeland Security and is responsible for securing and protecting all major US transportation systems, including aviation.
The TSA directly controls or influences many aspects of aviation security, including:
- Security standards and procedures on the ground and in the air
- Security screening of pilots
- Security screening of passengers
- Searching cargo
Note that the TSA is concerned with security, not safety, which is the responsibility of the National Transportation Safety Board (NTSB).
Use this tag for questions about TSA requirements for pilots and aircraft, including student pilot screening and the Alien Flight Student Program (AFSP).
Questions about passenger security checkpoints and baggage searches are off-topic on this site; you can ask them on travel.SE instead.