What is one of the roles of the FAA?

The Federal Aviation Administration (FAA) plays a crucial role in the regulation and oversight of air navigation facilities. This includes ensuring that air traffic control systems, navigational aids, and other critical infrastructure function effectively and safely for all users of the national airspace system. By regulating air navigation facilities, the FAA contributes to the overall safety and efficiency of air travel, ensuring that pilots and aircraft can navigate safely from departure to arrival.

The focus on air navigation facilities encompasses a wide range of responsibilities, including maintaining standards for the installation and operation of radar systems, communication equipment, and other technologies that support air traffic control. This regulatory function is vital in preventing accidents and ensuring a smooth flow of air traffic.

In contrast, the other options listed do not fall within the FAA's primary responsibilities. Conducting public health surveys is typically outside the aviation regulatory scope, while overseeing drug use and trafficking is managed by law enforcement agencies. Additionally, customs enforcement is the responsibility of agencies like Customs and Border Protection, rather than the FAA. Thus, the regulation of air navigation facilities is a core responsibility of the FAA that is critical to the safety and efficiency of the aviation industry.