Which regulatory body oversees Republic Airways operations?

The Federal Aviation Administration (FAA) is the regulatory body responsible for overseeing all aspects of civil aviation in the United States, including the operations of airlines like Republic Airways. The FAA establishes and enforces regulations concerning aircraft safety, air traffic control, pilot licensing, and the maintenance of aircraft. It ensures that all airlines, including regional carriers like Republic Airways, adhere to safety standards and operational protocols to ensure the safety and efficiency of air travel.

The other options, while related to aviation and transportation safety, do not have the same direct regulatory oversight. The National Transportation Safety Board (NTSB) primarily investigates transportation accidents and makes safety recommendations but does not regulate airline operations. The Department of Transportation (DOT) oversees broader transportation policies and economic regulations, but the specific operational oversight of airlines falls under the FAA. The Global Air Safety Authority (GASA) is not a recognized regulatory body in the context of U.S. aviation.