Regulations last checked for updates: Oct 17, 2024

Title 33 - Navigation and Navigable Waters last revised: Oct 15, 2024
§ 155.815 - Tank vessel integrity.

(a) Except as provided in paragraph (b) of this section, a tank vessel underway or at anchor must have all closure mechanisms on the following openings properly closed:

(1) Expansion trunk hatches;

(2) Ullage openings;

(3) Sounding ports;

(4) Tank cleaning openings; and

(5) Any other tank vessel openings that maintain the seaworthy condition of the tank vessel and prevent the inadvertent release of oil or hazardous material in the event of a tank vessel accident.

(b) No person may open any of the closure mechanisms in paragraph (a) of this section while the tank vessel is underway or at anchor except when authorized and supervised by a licensed or credentialed officer or the tankerman required by 46 CFR 31.15-5(a).

[CGD 75-124, 45 FR 7175, Jan. 31, 1980, as amended by CGD 86-034, 55 FR 36255, Sept. 4, 1990; USCG-2006-24371, 74 FR 11212, Mar. 16, 2009]
authority: 3 U.S.C. 301 through 303; 33 U.S.C. 1321(j), 1903(b), 2735; 46 U.S.C. 70011; 70034; E.O. 12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; DHS Delegation No. 00170.1, Revision No. 01.3. Section 155.1020 also issued under section 316 of Pub. L. 114-120. Section 155.480 also issued under section 4110(b) of Pub. L. 101-380
cite as: 33 CFR 155.815