Dependable Classification of Airports Act

This bill allows airports reclassified from "small hub" to "medium hub" status (starting in 2021 or later) to temporarily continue operating under "small hub" regulatory rules for up to five consecutive fiscal years. It directly affects airport owners/operators whose designation changes under federal airport classification rules. The key provision gives these airports a 5-year option to maintain their previous regulatory treatment, avoiding immediate application of medium hub requirements. The change modifies Title 49 U.S. Code to add this transition period for affected airports.