According to 14 CFR part 107, what is required to operate a small UA within 30 minutes after official sunset?
A. Use of anti-collision lights.
B. Must be operated in a rural area.
C. Use of a transponder.
Answer: A. Use of anti-collision lights.
During civil twilight, the 30 minutes before sunrise and after sunset, the aircraft needs anti-collision lighting visible for 3 statute miles. Drones may not use transponders under Part 107 without FAA authorization.
The FAA published this sample set in August 2021. Our answers were checked against the current regulations and against the testing-supplement figures in September 2026.