Board Decision Will Help to Ease Passenger Congestion at ONT. ONTARIO, California – San Bernardino County Fourth District Supervisor Curt Hagman today announced the County Board of Supervisors has approved an important proposal designed to alleviate passenger congestion at Ontario International Airport (ONT). The board’s decision provides funding in the amount of $250,000 which will allow construction/installation of an additional, fifth screening lane at the Transportation Security Administration (TSA) Security Checkpoint in Terminal 4.