Which agency is responsible for regulating air traffic in the United States?

The Federal Aviation Administration (FAA) is the agency responsible for regulating air traffic in the United States. Established in 1958, the FAA's primary role is to ensure the safety and efficiency of the national airspace system. This includes managing air traffic control, setting regulations for aircraft and pilot certification, and overseeing aviation safety practices. The FAA monitors the operations of airlines, air traffic controllers, and airports to maintain safety standards, coordinate air traffic to prevent collisions, and manage the flow of air travel throughout the country.

Other options hold different responsibilities: FEMA focuses on disaster relief and management, the Department of Transportation (DOT) oversees a broader range of transportation modes, including highways and railways, and the National Transportation Safety Board (NTSB) investigates transportation accidents and makes safety recommendations. However, none of these agencies have the primary role of regulating air traffic as the FAA does.