33 C.F.R. § 155.815 Tank vessel integrity.
Title 33 - Navigation and Navigable Waters
(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 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]
Title 33: Navigation and Navigable Waters
PART 155—OIL OR HAZARDOUS MATERIAL POLLUTION PREVENTION REGULATIONS FOR VESSELS
Subpart C—Transfer Personnel, Procedures, Equipment, and Records
§ 155.815 Tank vessel integrity.
