Anti-Collision Lighting Visibility for Civil Twilight Operations

Verified from official sources
AC 107-2A ¶ 5.7.1Version 1Effective -Verified 22 August 2026

In plain language

When flying during civil twilight, your drone must have anti-collision lights that are visible for at least 3 statute miles to ensure safety and compliance.

Requirement as structured

The FAA accepts equipping the small unmanned aircraft with anti-collision lighting visible for at least 3 statute miles as a means of complying with civil twilight operation requirements.

Original regulatory text

When small UAS operations occur during civil twilight, the small unmanned aircraft must be equipped with anti-collision lighting visible for at least 3 statute miles (sm).

Applies when

country
United States
time of day
civil_twilight
regulatory category
General