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5-1-2

ATC Surveillance Source Use

JO 7110.65BB, Change 3, effective July 9, 2026 · Official text on faa.gov

Use approved ATC surveillance sources. TERMINAL. When operating in FUSION mode, the provisions of 5-1-2a are not applicable, unless required by facility directive.

  1. Secondary radar may be used as the sole display source as follows:
    1. In Class A airspace.
    2. Outside Class A airspace, or where mix of Class A airspace/non-Class A airspace exists, only when:
      1. Additional coverage is provided by secondary radar beyond that of the primary radar, or
      2. The primary radar is temporarily unusable or out of service. Advise pilots when these conditions exist, or
      3. A secondary radar system is the only source of radar data for the area of service. TERMINAL. Advise pilots when these conditions exist.
  2. TERMINAL. Do not use secondary radar only to conduct surveillance (ASR) final approaches unless an emergency exists and the pilot concurs.
  3. Targets derived from ADS-B and WAM may be used for the provision of all ATC services when operating in STARS Fusion, STARS FMA, STARS Multi‐Sensor Mode, and the EAS, including those associated with any published instrument procedure annotated “radar required.”