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Category 4 eligibility requirement

Remote Pilot (Part 107) practice question 1 of 19 on Regulations / Operations Over People. ACS element UA.I.E.K4 · 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 § 107.140, what must a small unmanned aircraft have to be eligible for Category 4 operations over human beings?

  1. AA listing on an FAA-accepted declaration of compliance
  2. BAn airworthiness certificate issued under part 21
  3. CA Category 4 label permanently affixed to the aircraft
Show the answer and explanation

Correct answer: B. An airworthiness certificate issued under part 21

  • A — incorrect Declarations of compliance are the eligibility mechanism for Category 2 and Category 3, not Category 4.
  • B — correct § 107.140(b)(1) requires a Category 4 aircraft to have an airworthiness certificate issued under 14 CFR part 21.
  • C — incorrect Labeling requirements in subpart D apply to Category 2 and Category 3 aircraft; Category 4 eligibility rests on an airworthiness certificate.

BACKGROUND

Category 4 is the category for small unmanned aircraft that have gone through the FAA's airworthiness certification process. Under § 107.140(b), the aircraft must have an airworthiness certificate issued under part 21, be operated in accordance with the operating limitations in the approved Flight Manual or as otherwise specified by the Administrator, and those limitations must not prohibit operations over human beings. The aircraft must also have maintenance, preventive maintenance, alterations and inspections performed in accordance with § 107.140(c). Like Categories 1 and 2, Category 4 prohibits sustained flight over open-air assemblies unless the operation meets § 89.110 or § 89.115(a).

STUDY TIP

Associate each category with its eligibility mechanism: weight for Category 1, declaration of compliance for Categories 2 and 3, and an airworthiness certificate for Category 4.

KEY POINTS

  • Category 4 aircraft must hold an airworthiness certificate issued under part 21.
  • The aircraft must be operated within the Flight Manual operating limitations, which must not prohibit operations over people.
  • Maintenance and records for Category 4 aircraft must meet § 107.140(c).

SOURCES

  • 14 CFR 107.140(b)
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MORE ON REGULATIONS / OPERATIONS OVER PEOPLE

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.