According to the FAA, how is a "commercial service airport" defined?

A commercial service airport is defined by the Federal Aviation Administration (FAA) as one that regularly provides airline services and facilitates passenger travel. Specifically, the requirement of at least 2,500 passenger boardings annually indicates that the airport must have a consistent level of commercial activity. This figure helps to establish a minimum threshold for determining the airport’s role in the national air transportation network, ensuring it meets the needs of travelers and supports commercial air travel.

The definition emphasizes the importance of regular airline operations, distinguishing these airports from those that may cater to private aviation or cargo activities without the same level of passenger service and frequency. This classification helps in allocating federal funding, resources, and regulatory oversight appropriately to facilities that directly impact public air travel.