What agency is responsible for the oversight of the national airspace system?

The Federal Aviation Administration (FAA) is the agency responsible for the oversight of the national airspace system in the United States. This includes the regulation of civil aviation, overseeing air traffic management, ensuring aviation safety, and setting standards for the operation of airports and aircraft. The FAA plays a critical role in maintaining efficient and safe operations within the airspace by implementing rules, guidelines, and procedures that govern how aircraft operate in U.S. airspace.

The National Transportation Safety Board (NTSB) is primarily involved in investigating transportation accidents and making recommendations to improve safety, rather than overseeing air traffic or the national airspace system. The Department of Homeland Security (DHS) focuses on national security and emergency management rather than aviation regulation. The State of Hawaii Department of Transportation manages transportation within the state but does not have authority over the national airspace system, which falls under federal jurisdiction. Thus, the FAA is the key agency for airspace oversight and is vital to ensuring the safety and efficiency of air travel in the nation.