§ 149.723 - Intensity.

Latest version.

(a) Each light on a buoy, hose string, and SPM must:

(1) Have at least the effective intensity required by this subpart for the light at all angles, the origin of which is the focal point of the light, that are included within ±1° from the focal plane of the light; and

(2) Have at least 50% of the effective intensity required by this subpart for the light at all angles, the origin of which is the focal point of the light, that are included within ±2° from the focal plane of the light.

(b) Each light on a platform, including the rotating lighted beacon, must:

(1) Have at least the effective intensity required by this subpart at all angles within ±0.5° of the horizontal plane that includes the focal point of the lens; and

(2) Have at least 50% of the effective intensity required by this subpart for the light at angles within ±1° of the horizontal plane that includes the focal point of the lens.

                    
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