33 C.F.R. § 157.228 Isolating Valves: Closed during a voyage.
Title 33 - Navigation and Navigable Waters
(a) The master of each U.S. tank vessel under §157.10a(b), §157.10a(c)(2), §157.10b(a)(2), or §157.10c(c)(2) shall ensure that the valves under §157.222(d) remain closed during each voyage. (b) The master of each foreign tank vessel meeting §157.10a(b), §157.10a(c)(2), §157.10b(a)(2), or §157.10c(c)(2) shall ensure that the valves under §157.222(d) remain closed when the vessel is on a voyage in the navigable waters of the United States. [CGD 82–28, 50 FR 11629, Mar. 22, 1985]
Title 33: Navigation and Navigable Waters
PART 157—RULES FOR THE PROTECTION OF THE MARINE ENVIRONMENT RELATING TO TANK VESSELS CARRYING OIL IN BULK
Subpart E—Dedicated Clean Ballast Tanks on Tank Vessels
Dedicated Clean Ballast Tanks Operations
§ 157.228 Isolating Valves: Closed during a voyage.
