AIM 8/15/19  7/16/20  Service  −  Broadcast (FIS − B) (Paragraph 4 − 5 − 9). services: Traffic Information Service – Broadcast (TIS − B) (Paragraph 4 − 5 − 8) and Flight Information FIG 4 − 5 − 7 ADS − B, TIS − B, and FIS − B: Broadcast Services Architecture c. ADS − B Capabilities and Procedures. b. ADS − B Certification and Performance Requirements. 1. ADS − B enables improved surveillance ser- vices, both air − to − air and air − to − ground, especially in areas where radar is ineffective due to terrain or where it is impractical or cost prohibitive. Initial NAS applications of air − to − air ADS − B are for “advisory” use only, enhancing a pilot’s visual acquisition of other nearby equipped aircraft either when airborne or on the airport surface. Additionally, ADS − B will enable ATC and fleet operators to monitor aircraft throughout the available ground station coverage area. ADS − B equipment may be certified as a surveillance source for air traffic separation services using ADS − B Out. ADS − B equipment may also be certified for use with ADS − B In advisory services that enable appropriately equipped aircraft to display traffic and flight information. Refer to the aircraft’s flight manual supplement or Pilot Operating Handbook for the capabilities of a specific aircraft installation. 4 − 5 − Surveillance Systems