The Bahamas Air Navigation Services Authority (BANSA) has begun imposing retroactive fees on aircraft operators that flew to, out of, within, or over the Bahamas in twin piston-engined, turboprop, or jet-powered aircraft since May 1, 2021. Single piston-engined aircraft conducting private operations are exempt. They are charged in addition to other fees and also apply to operators that have already paid for BANSA services. The association has also questioned the legitimacy of the fees, noting that the FAA provides most air traffic services in the Bahamas while charging only a nominal annual fee. The NBAA has urged operators receiving retroactive invoices to share details of their cases to support the advocacy effort.