StacksVerified U.S. regulatory reference

33 CFR §157.27

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Unless a tank vessel carrying oil exclusively on rivers, lakes, bays, sounds, and the Great Lakes, or a seagoing tank vessel of less than 150 gross tons discharges clean ballast or segregated ballast, the vessel must:
  1. (a)Retain on board any oily mixture; or
  2. (b)Transfer an oily mixture to a reception facility.