Anti-Collision Lighting Requirement for Civil Twilight Operations

In plain language

If you fly during civil twilight, your drone must have anti-collision lights visible for at least 3 statute miles. You can dim them for safety, but you cannot turn them off.

Requirement as structured

The small unmanned aircraft must have lighted anti-collision lighting visible for at least 3 statute miles that has a flash rate sufficient to avoid a collision during civil twilight.

Original regulatory text

No person may operate a small unmanned aircraft system during periods of civil twilight unless the small unmanned aircraft has lighted anti-collision lighting visible for at least 3 statute miles that has a flash rate sufficient to avoid a collision. The remote pilot in command may reduce the intensity of, but may not extinguish, the anti-collision lighting if he or she determines that, because of operating conditions, it would be in the interest of safety to do so.

Applies when

country

United States

time of day

civil_twilight

regulatory category

General