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§ 91.209 - Aircraft lights.

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No person may:

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)—

Operate an aircraft unless it has lighted position lights;

Park or move an aircraft in, or in dangerous proximity to, a night flight operations area of an airport unless the aircraft—

Is clearly illuminated;

Has lighted position lights; or

is in an area that is marked by obstruction lights;

Anchor an aircraft unless the aircraft—

Has lighted anchor lights; or

Is in an area where anchor lights are not required on vessels; or

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.

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§ 91.207 - Emergency locator transmitters.
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