Reference library
14 CFR § 91.209
Volume 2 · Title 14 of the Code of Federal Regulations, 2025 edition.
Aircraft lights
Sec. 91.209 Aircraft lights.
No person may:
(a) During the period from sunset to sunrise (or, in Alaska, during
the period a prominent unlighted object cannot be seen from a distance
of 3 statute miles or the sun is more than 6 degrees below the
horizon)--
(1) Operate an aircraft unless it has lighted position lights;
(2) Park or move an aircraft in, or in dangerous proximity to, a
night flight operations area of an airport unless the aircraft--
(i) Is clearly illuminated;
(ii) Has lighted position lights; or
(iii) is in an area that is marked by obstruction lights;
(3) Anchor an aircraft unless the aircraft--
(i) Has lighted anchor lights; or
(ii) Is in an area where anchor lights are not required on vessels;
or
(b) Operate an aircraft that is equipped with an anticollision light
system, unless it has lighted anticollision lights. However, the
anticollision lights need not be lighted when the pilot-in-command
determines that, because of operating conditions, it would be in the
interest of safety to turn the lights off.
[Docket 27806, 61 FR 5171, Feb. 9, 1996]U.S. Government work — public domain (17 U.S.C. §105). Reproduced from the checksummed 2025 annual edition of Title 14; always confirm against the current eCFR.