ADS-B will be implemented by the Surveillance and Broadcast Services ( SBS ) Program to provide two services : ( 1 ) " Critical Services " consisting of ADS-B and ADS-Rebroadcast, and ( 2 ) " Essential Services " consisting of Traffic Information Service Broadcast ( TIS-B ) and Flight Information Service Broadcast ( FIS-B ).
32.
The aircraft are fitted with instrument flight rules ( IFR ) capable GPS receivers, a universal access transceiver ( UAT ) data-link system that enabled automatic dependent surveillance broadcast ( ADS-B ), and flight information service ( FIS ) including real-time weather, and a multifunction display depicting terrain, other ADS-B aircraft, and weather graphics and text data.
