# Discharges of oil not determined “as may be harmful” pursuant to Section 311(b)(3) of the Act.

- **operation:** document
- **citation:** 40 CFR 110.5
- **title:** Discharges of oil not determined “as may be harmful” pursuant to Section 311(b)(3) of the Act.
- **source type:** regulation
- **agency:** Environmental Protection Agency
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** 2026-08-18
- **summary:** Notwithstanding any other provisions of this part, the Administrator has not determined the following discharges of oil “as may be harmful” for purposes of section 311(b) of the Act:

(a) Discharges of oil from a properly functioning vessel engine (including an engine on a public vessel) and any dis
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- **app url:** https://regulus.evalyn.ai/document/40-cfr-110-5
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-40/section-110.5
**body:**

Notwithstanding any other provisions of this part, the Administrator has not determined the following discharges of oil “as may be harmful” for purposes of section 311(b) of the Act:

(a) Discharges of oil from a properly functioning vessel engine (including an engine on a public vessel) and any discharges of such oil accumulated in the bilges of a vessel discharged in compliance with MARPOL 73/78, Annex I, as provided in 33 CFR part 151, subpart A;

(b) Other discharges of oil permitted under MARPOL 73/78, Annex I, as provided in 33 CFR part 151, subpart A; and

(c) Any discharge of oil explicitly permitted by the Administrator in connection with research, demonstration projects, or studies relating to the prevention, control, or abatement of oil pollution.

[61 FR 7421, Feb. 28, 1996]
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