27.1393—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
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