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ADS-B Out equipment restriction

Remote Pilot (Part 107) practice question 5 of 34 on Regulations / Operating Rules. ACS element UA.I.B.K28 · difficulty: recall. Want to answer it in a timed quiz? Use the Remote Pilot (Part 107) practice mode.

Question bank updated 2026-09-22

QUESTIONUnder § 107.53, what is the rule on Automatic Dependent Surveillance-Broadcast (ADS-B) Out equipment for a small unmanned aircraft system operated under part 107?

  1. AIt must be installed and transmitting in Class B, C, and D airspace
  2. BIt must be installed and transmitting whenever operating at night or in civil twilight
  3. CIt may not be in transmit mode unless authorized by the Administrator
Show the answer and explanation

Correct answer: C. It may not be in transmit mode unless authorized by the Administrator

  • A — incorrect § 107.53 prohibits ADS-B Out in transmit mode absent authorization; it does not require it in any airspace class.
  • B — incorrect Night and civil twilight operations under § 107.29 require anti-collision lighting, not ADS-B Out; § 107.53 prohibits transmitting without authorization.
  • C — correct § 107.53 states that, unless otherwise authorized by the Administrator, no person may operate a small unmanned aircraft system under part 107 with ADS-B Out equipment in transmit mode.

BACKGROUND

Section 107.53 of 14 CFR part 107 is titled Automatic Dependent Surveillance-Broadcast (ADS-B) Out prohibition. It states that unless otherwise authorized by the Administrator, no person may operate a small unmanned aircraft system under part 107 with ADS-B Out equipment in transmit mode. The neighboring § 107.52 imposes a parallel prohibition on operating with a transponder on. Both sections were added by Amendment 107-7. The prohibitions are framed as defaults that the Administrator can override with specific authorization.

STUDY TIP

Treat § 107.52 (transponder) and § 107.53 (ADS-B Out) as a pair: both are prohibitions unless the Administrator authorizes otherwise.

KEY POINTS

  • § 107.53: no operation under part 107 with ADS-B Out equipment in transmit mode unless authorized by the Administrator.
  • § 107.52 applies the same structure to operating with a transponder on.
  • Part 107 never requires ADS-B Out for small unmanned aircraft.

SOURCES

  • 14 CFR 107.53
  • 14 CFR 107.52
Practice the Remote Pilot (Part 107) test →Timed 60-question exam, by ACS area, or review your misses. Free.
MORE ON REGULATIONS / OPERATING RULES

SkyDrill is not affiliated with the FAA. This is an original practice item based on 14 CFR part 107, 14 CFR part 89, and the FAA Remote Pilot – Small UAS Study Guide (FAA-G-8082-22). Regulations and handbooks are revised; confirm details against the current edition.