The Federal Aviation Administration (FAA) announced the last $500 rebates offered for general aviation aircraft owners to install Automatic Dependent Surveillance – Broadcast (ADS-B) systems have been reserved.

Starting January 1, 2020, you must be equipped with ADS-B Out to fly in most controlled airspace.

Since launching the program in September 2016, the FAA has offered 20,000 rebates to qualified applicants.

Should any of the reservations be returned, the agency will make them available each Wednesday at 1 p.m. Eastern Time on a first-come, first-served basis.

The FAA rebates were made available to encourage owners of fixed-wing, single-engine piston aircraft to equip with ADS-B Out avionics, which will be required in certain, controlled airspace by Jan. 1, 2020.

In addition to the ADS-B Rebate reservation portal, the FAA's Equip ADS-B website lists FAA-certified ADS-B equipment and features an equipage database searchable by aircraft type and model.

The FAA site also offers various guides and information what airspace is affected.