In 2026, the primary regulator for airlines in the United States is the Federal Aviation Administration (FAA), which operates under the U.S. Department of Transportation (DOT). The FAA is responsible for the safety of civil aviation, including pilot certification, aircraft maintenance standards, and air traffic control. While the FAA handles the "technical and safety" aspects, the Department of Transportation (DOT) itself regulates the "economic" and "consumer protection" side of the industry, such as baggage fee transparency, refund rules, and accessibility standards. Additionally, the Transportation Security Administration (TSA) oversees the security screening of passengers and cargo. These agencies work in tandem to ensure that the U.S. airspace remains one of the safest and most regulated in the world, frequently updating rules to accommodate new technologies like electric vertical takeoff and landing (eVTOL) aircraft.