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 D—Crude Oil Washing (COW) System on Tank Vessels (§157.100 to §157.172) > 157.158—COW operations: Changed characteristics.

157.158—COW operations: Changed characteristics.

The COW system may be operated with characteristics that do not meet those recorded under § 157.150(b) only if:
(a) The tank vessel passes the inspections under § 157.140 using the changed characteristics;
(b) The changed characteristics used to pass the inspections under § 157.140 are recorded in the Crude Oil Washing Operations and Equipment Manual approved under § 157.112; and
(c) The Coast Guard issues to the tank vessel an amending letter stating that the tank vessel complies with this subpart with these characteristics.