Section 155.330 - Oily mixture (bilge slops)/fuel oil tank ballast water discharges on U.S. non-oceangoing ships(a) No person may operate a U.S. non-oceangoing ship in the navigable waters of the United States, unless it has the capacity to retain on board all oily mixtures and is equipped to discharge these oily mixtures to a reception facility.(b) A U.S. non-oceangoing ship may retain all oily mixtures on board in the ship's bilges. An oil residue (sludge) tank is not required.(c) This section does not apply to a fixed or floating drilling rig or other platform.CGD 75-124a, 48 FR 45715, Oct. 6, 1983, as amended by USCG-2000-7641, 66 FR 55571 , Nov. 2, 2001