14 CFR 103.11
§ 103.11 Daylight operations.
United States · 14 CFR — Aeronautics and Space · Status: effective
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- Citation
- 14 CFR 103.11, § 103.11 Daylight operations, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/56352
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Full text
(a) No person may operate an ultralight vehicle except between the hours of sunrise and sunset.
(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
(2) All operations are conducted in uncontrolled airspace.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.