What is the main regulatory body for all of aviation in the United States?

The main regulatory body for all of aviation in the United States is the Federal Aviation Administration (FAA). The FAA is responsible for establishing regulations and policies governing civil aviation, ensuring the safety of aircraft operations, and managing air traffic control. It oversees the certification of pilots and aircraft, as well as the regulation of commercial airlines, airports, and aviation-related services.

This agency plays a critical role in maintaining aviation standards and ensuring compliance with safety protocols, which is essential for protecting both passengers and cargo during air travel. The FAA's regulatory authority encompasses a wide range of aviation-related activities and entities, making it the primary governing body within the United States aviation framework.

In contrast, while other organizations like the National Transportation Safety Board (NTSB) investigate aviation accidents and the Department of Transportation (DOT) oversees various transportation modes, they do not have the comprehensive regulatory authority specific to aviation that the FAA holds. The Transportation Security Administration (TSA) focuses on airport and aircraft security rather than the broader regulatory aspects of aviation.