§83.22. Visibility of lights (Rule 22).
33 C.F.R. § 83.22
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:
In a vessel of 50 meters or more in length—
A masthead light, 6 miles;
A sidelight, 3 miles;
A sternlight, 3 miles;
A towing light, 3 miles;
A white, red, green or yellow all-round light, 3 miles; and
A special flashing light, 2 miles.
In a vessel of 12 meters or more in length but less than 50 meters in length—
A masthead light, 5 miles; except that where the length of the vessel is less than 20 meters, 3 miles;
A sidelight, 2 miles;
A sternlight, 2 miles;
A towing light, 2 miles;
A white, red, green or yellow all-round light, 2 miles; and
A special flashing light, 2 miles.
In a vessel of less than 12 meters in length—
A masthead light, 2 miles;
A sidelight, 1 mile;
A sternlight, 2 miles;
A towing light, 2 miles;
A white, red, green or yellow all-round light, 2 miles; and
A special flashing light, 2 miles.
In an inconspicuous, partly submerged vessel or objects being towed—
A white all-round light, 3 miles.
[Reserved]
Notes, amendments, and revision history
Amendments
[USCG-2012-0102, 79 FR 37912, July 2, 2014, as amended by USCG-2012-0102, 79 FR 68621, Nov. 18, 2014; USCG-2020-0304, 85 FR 58277, Sept. 18, 2020]
Authority
Authority: 33 U.S.C. 2071; DHS Delegation No. 00170.1, Revision No. 01.3.
Source
Source: USCG-2012-0102, 79 FR 37912, July 2, 2014, unless otherwise noted.
Amendments
[USCG-2012-0102, 79 FR 37912, July 2, 2014, as amended by USCG-2012-0102, 79 FR 68621, Nov. 18, 2014; USCG-2020-0304, 85 FR 58277, Sept. 18, 2020]