What is the primary piece of legislation governing aviation in the United States?

The Federal Aviation Act of 1958 serves as the primary piece of legislation governing aviation in the United States. This act established the Federal Aviation Administration (FAA), which is responsible for regulating all aspects of civil aviation in the country. It was a pivotal moment in aviation law, as it consolidated earlier aviation regulations under a single federal authority, enhancing oversight of air safety, air traffic control, and flight standards.

The act also paved the way for subsequent legislation and regulations that further developed the aviation industry's framework, addressing safety, economic regulation, and infrastructure. By creating a dedicated agency, the act ensured specialized knowledge and expertise were applied to the growing complexity of air transport.

Other pieces of legislation, while significant in their own right, focus on more specific aspects of aviation. For instance, the Aviation Safety Improvement Act addresses particular safety issues, the Aircraft Certification Act pertains to the certification of aircraft and equipment, and the Civil Aeronautics Act was earlier legislation that has largely been supplanted by more comprehensive measures like the Federal Aviation Act. The Federal Aviation Act stands out as the foundational law that governs and shapes the entire field of aviation safety and regulation in the United States.