Electronic Code of Federal Regulations

Title 33: Navigation and Navigable Waters
PART 83—NAVIGATION RULES
Subpart C—Lights and Shapes

§83.22   Visibility of lights (Rule 22).

The lights prescribed in these Rules (Subpart C) shall have an intensity as specified in Annex I to these Rules (33 CFR part 84), so as to be visible at the following minimum ranges:

(a) In a vessel of 50 meters or more in length:

(i) A masthead light, 6 miles;

(ii) A sidelight, 3 miles;

(iii) A sternlight, 3 miles;

(iv) A towing light, 3 miles;

(v) A white, red, green or yellow all-round light, 3 miles; and

(vi) A special flashing light, 2 miles.

(b) In a vessel of 12 meters or more in length but less than 50 meters in length:

(i) A masthead light, 5 miles; except that where the length of the vessel is less than 20 meters, 3 miles;

(ii) A sidelight, 2 miles;

(iii) A sternlight, 2 miles;

(iv) A towing light, 2 miles;

(v) A white, red, green or yellow all-round light, 2 miles; and

(vi) A special flashing light, 2 miles.

(c) In a vessel of less than 12 meters in length—

(i) A masthead light, 2 miles;

(ii) A sidelight, 1 mile;

(iii) A sternlight, 2 miles;

(iv) A towing light, 2 miles;

(v) A white, red, green or yellow all-round light, 2 miles; and

(vi) A special flashing light, 2 miles.

(d) In an inconspicuous, partly submerged vessel or objects being towed:

(i) A white all-round light, 3 miles.

(ii) [Reserved]

[USCG-2012-0102, 79 FR 37912, July 2, 2014, as amended by USCG-2012-0102, 79 FR 68621, Nov. 18, 2014]