14 CFR 25.1391 - Minimum intensities in the horizontal plane of forward and rear position lights.

Regulations most recently checked for updates: Aug 27, 2025

§ 25.1391 - Minimum intensities in the horizontal plane of forward and rear position lights.

Each position light intensity must equal or exceed the applicable values in the following table:

Dihedral angle (light included)	Angle from right or left of longitudinal axis, measured from dead ahead	Intensity (candles)
L and R (forward red and green)	0° to 10° 10° to 20° 20° to 110°	40 30 5
A (rear white)	110° to 180°	20