Which act is associated with the deregulation of the airline industry?

The Airline Deregulation Act of 1978 is the key legislation associated with the deregulation of the airline industry. This act fundamentally transformed how airlines operated in the United States by removing government control over airline routes and fares. Prior to this act, airlines were required to obtain government approval for new routes and fare changes, which limited competition and innovation within the industry.

The enactment of the Airline Deregulation Act aimed to enhance competition among airlines, leading to lower fares, increased services, and more choices for consumers. It allowed for a free-market approach in the airline sector, where airlines could determine their own prices and routes based on market demand. This shift has significantly shaped the current landscape of commercial aviation, making air travel more accessible to the broader public.

The other options, while they pertain to aviation regulations, do not specifically address the deregulation aspect of the airline industry as directly as the Airline Deregulation Act does.