The FAA has provided grant money to fund a hotline for charter operators to report “suspected illegal commercial activity,” according to the National Air Transportation Association, which is administering the system. The hotline–(888) 759-3581–is designed for employees or agents of Part 135 charter certificate holders to report activities that they suspect are illegal charters, NATA explained, “where an aircraft operator without an FAA Part 135 certificate is accepting compensation for transportation, in violation of both FAA and Department of Transportation regulations.” Hotline callers can report anonymously.