14 CFR 103.11 - Daylight operations.
(b) Notwithstanding paragraph (a) of this section, ultralight vehicles may be operated during the twilight periods 30 minutes before official sunrise and 30 minutes after official sunset or, in Alaska, during the period of civil twilight as defined in the Air Almanac, if:
(1) The vehicle is equipped with an operating anticollision light visible for at least 3 statute miles; and
Title 14 published on 2015-01-01.
No entries appear in the Federal Register after this date, for 14 CFR Part 103.