CFR > Title 33 - Navigation and Navigable Waters > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER O—POLLUTION (parts 151 to 159) > PART 157—RULES FOR THE PROTECTION OF THE MARINE ENVIRONMENT RELATING TO TANK VESSELS CARRYING OIL IN BULK > SUBPART C—Vessel Operation (§157.25 to §157.49) > 157.35—Ballast added to cargo tanks.

157.35—Ballast added to cargo tanks.

The master of a tank vessel with segregated ballast tanks or dedicated clean ballast tanks under § 157.09, § 157.10, § 157.10a(a)(1), § 157.10a(b), § 157.10a(c), § 157.10b(a), § 157.10c(b)(1), or § 157.10c(c) shall ensure that ballast water is carried in a cargo tank only if—
(a) The vessel encounters abnormally severe weather conditions;
(b) More ballast water than can be carried in segregated ballast tanks or dedicated clean ballast tanks is necessary for the safety of the vessel;
(c) The ballast water is processed and discharged in compliance with § 157.37; and
(d) On a new vessel under § 157.10 that carries crude oil, the ballast water is only carried in a cargo tank that is crude oil washed in accordance with Subpart D of this part during or after the most recent discharge of crude oil from that tank.

Code of Federal Regulations

[CGD 77-058b, 45 FR 43708, June 30, 1980, as amended by CGD 82-28, 50 FR 11626, Mar. 22, 1985]