In a letter to Members of Congress, the National Air Carrier Association expressed concerns about efforts in the House to increase the PFC. “Not only are more people flying, which boosts PFC revenues, but other sources of funding for airports – rentals paid by restaurants, retailers, and hotels, in addition to other taxes – are growing as well. Total airport revenues have grown nearly 50% since 2000, and PFC collections alone increased more than 50% during that same period. At the end of 2017 airports had over $14 billion in unrestricted cash and investments on their balance sheets. In short, there is no airport funding crisis.