---
kind: "section"
citation: "33 C.F.R. § 157.12"
title: "33"
number: "157.12"
heading: "Oil discharge monitoring and control system."
url: "https://uscodex.org/cfr/33/157.12"
---

# §157.12. Oil discharge monitoring and control system.

- (a) Each vessel must have an oil discharge monitoring and control system (monitoring system) that is designed for use with each type of cargo oil that the vessel carries.
- (b) Each oil content meter component of the monitoring system installed on a U.S. vessel must be approved under [46 CFR part 162](/cfr/46/part162.md), [subpart 162.050](/cfr/33/subpart162.050.md). Each oil content meter component of the monitoring system installed on a foreign vessel must be approved:
  - (1) Under [46 CFR part 162](/cfr/46/part162.md), [subpart 162.050](/cfr/33/subpart162.050.md); or
  - (2) As meeting IMO Marine Environment Protection Committee resolution MEPC.108(49) by a country that has ratified the MARPOL 73/78. Paragraph 1.2.2 of MEPC.108(49) provides, as to equipment installed in “oil tankers the keels of which are laid, or which are at a similar stage of construction, before January 1, 2005,” for alternative compliance with IMO resolutions A.393(X), A.496(XII), MEPC.13(19), and A.586(14). These five resolutions are incorporated by reference (see [§ 157.02](/cfr/33/157.02.md)).
- (c) Each oil discharge monitoring and control system on a U.S. vessel must be installed in accordance with [§§ 157.12b through 157.12g](/cfr/33/157.12b..157.12g.md) of this part.

## Notes

### Amendments

[USCG-2004-18939, 74 FR 3378, Jan. 16, 2009]

### Authority

Authority: 33 U.S.C. 1903; 46 U.S.C. 3703, 3703a (note); Department of Homeland Security Delegation No. 0170.1. Subparts G, H, and I are also issued under section 4115(b), Pub. L. 101-380, 104 Stat. 520; Pub. L. 104-55, 109 Stat. 546.

### Source

Source: CGD 74-32, 40 FR 48283, Oct. 14, 1975, unless otherwise noted.

### Amendments

[USCG-2004-18939, 74 FR 3378, Jan. 16, 2009]