Which federal agency is responsible for regulating civil aviation?

The Federal Aviation Administration (FAA) is the agency responsible for regulating civil aviation in the United States. This includes ensuring the safety of civil air travel, managing air traffic control, overseeing aircraft certification, and enforcing regulations for pilot licensing. The FAA plays a crucial role in developing and implementing safety standards and policies that govern all aspects of civil aviation operations.

Understanding the FAA's role helps clarify why it is the correct choice compared to the other agencies. The Transportation Security Administration focuses on security measures and passenger screening rather than aviation regulation. The Federal Bureau of Aviation does not exist as a federal agency. The National Transportation Agency's mission is broader than just aviation, encompassing various modes of transportation. Therefore, the FAA is the definitive agency with specialized authority in civil aviation regulation.