View all text of Subpart C [§ 157.25 - § 157.49]
§ 157.39 - Machinery space bilges.
(a) A tank vessel may discharge an oily mixture from a machinery space bilge that is combined with an oil cargo residue if the vessel discharges in compliance with § 157.37.
(b) A tank vessel may discharge an oily mixture from a machinery space bilge that is not combined with an oil cargo residue if the vessel:
(1) Is proceeding en route;
(2) Is discharging an effluent with an oil content of less than 15 parts per million; and
(3) Has in operation an oil discharge monitoring and control system in compliance with § 157.12 and oil separating equipment in compliance with 33 CFR 155.380.