14 CFR 25.1393 - Minimum intensities in any vertical plane of forward and rear position lights.

Regulations most recently checked for updates: Aug 27, 2025

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§ 25.1393 - Minimum intensities in any vertical plane of forward and rear position lights.

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

Angle above or below the horizontal plane	Intensity, l
0°	1.00
0° to 5°	0.90
5° to 10°	0.80
10° to 15°	0.70
15° to 20°	0.50
20° to 30°	0.30
30° to 40°	0.10
40° to 90°	0.05