According to 14 CFR Part 107, what is required to operate a small UA within 30 minutes after official sunset?
AUse of anti-collision lights.✓
BMust be operated in a rural area.
CUse of a transponder.
Why →Under 14 CFR § 107.29, sUAS may operate during civil twilight (30 minutes before official sunrise to 30 minutes after official sunset) and at night, but must be equipped with anti-collision lighting visible for at least 3 statute miles. No transponder is required, and there is no rural-area restriction for night operations.
The trap →Transponders belong to manned aviation, and the rural-area restriction is a fabricated rule. The anti-collision light is the only equipment requirement added for twilight and night ops.
Field note →The 3-SM visibility rule means a standard strobe visible at 3 statute miles, not just a camera light. Many drone pilots add dedicated nav/strobe lights to meet this.
SOURCE → 14 CFR § 107.29, FAA UAG Sample Question 27CHECKED JUL 16ACS I.B.K1EASY