---
kind: "section"
citation: "33 C.F.R. § 151.37"
title: "33"
number: "151.37"
heading: "Obtaining an Attachment for NLSs to the IOPP Certificate and obtaining an NLS Certificate."
url: "https://uscodex.org/cfr/33/151.37"
---

# §151.37. Obtaining an Attachment for NLSs to the IOPP Certificate and obtaining an NLS Certificate.

- (a) The Coast Guard or a classification society authorized under [46 CFR part 8](/cfr/46/part8.md) issues an Attachment for NLSs to the IOPP Certificate to an oceangoing ship to allow the carriage of a Category C oil-like NLS or a Category D oil-like NLS if the following requirements are met:
  - (1) Except for ships that are not configured and are not equipped to ballast or wash cargo tanks while proceeding en route, the ship must have a Coast Guard approved monitor under [§ 157.12](/cfr/33/157.12.md) that is approved for the cargoes that are desired to be carried.
  - (2) Except as required by [paragraph (a)(3)](#a-3), ships of 150 meters or less in length carrying a Category C oil-like NLS must meet the damage stability requirements applying to a Type III hull as provided by Regulation 14 (c) of Annex II.
  - (3) A U.S. self propelled ship of 150 meters or less in length on a coastwise voyage carrying a Category C oil-like NLS must meet the damage stability requirements applying to a Type III hull as provided by [46 CFR part 172](/cfr/46/part172.md), [subpart F](/cfr/33/subpartF.md) except §§ [172.130](/cfr/33/172.130.md) and [172.133](/cfr/33/172.133.md).
- (b) Except as allowed in [paragraph (c)](#c) of this section, the Coast Guard or a classification society authorized under [46 CFR part 8](/cfr/46/part8.md) issues an NLS Certificate endorsed to allow the oceangoing ship engaged in a foreign voyage to carry a Category D NLS listed in [§ 151.47](/cfr/33/151.47.md) if the ship has—
  - (1) An approved Procedures and Arrangements Manual and Cargo Record Book, both meeting the requirements in [46 CFR 153.490](/cfr/46/153.490.md); and
  - (2) A residue discharge system meeting [46 CFR 153.470](/cfr/46/153.470.md), unless the approved Procedures and Arrangements Manual limits discharge of Category D NLS residue to the alternative provided by [46 CFR 153.1128(b)](/cfr/46/153.1128.md?p=b).
- (c) The Coast Guard or a classification society authorized under [46 CFR part 8](/cfr/46/part8.md) issues a NLS Certificate with the statement that the vessel is prohibited from discharging NLS residues to the sea if the vessel does not meet 46 CFR [153.470](/cfr/46/153.470.md) and [153.490](/cfr/46/153.490.md) but meets [46 CFR subpart 98.31](/cfr/46/subpart98.31.md).

## Notes

### Amendments

[CGD 75-124a, 48 FR 45709, Oct. 6, 1983, as amended by CGD 95-010, 62 FR 67532, Dec. 24, 1997]

### Source

Source: Sections 151.30 through 151.49 appear by CGD 85-010, 52 FR 7759, Mar. 12, 1987, unless otherwise noted.

### Authority

Authority: 33 U.S.C. 1321, 1903, 1908; 46 U.S.C. 6101; Pub. L. 104-227 (110 Stat. 3034); E.O. 12777, 3 CFR, 1991 Comp. p. 351; Department of Homeland Security Delegation No. 170.1.

### Source

Source: CGD 75-124a, 48 FR 45709, Oct. 6, 1983, unless otherwise noted.

### Authority

Authority: 33 U.S.C. 1902, 1903, 1908; 46 U.S.C. 6101; 46 U.S.C. 70034; Pub. L. 104-227, 110 Stat. 3034; sec. 623, Pub. L. 108-293, 118 Stat. 1063; E.O. 12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; DHS Delegation No. 00170.1, Revision No. 01.4.

### Amendments

[CGD 75-124a, 48 FR 45709, Oct. 6, 1983, as amended by CGD 95-010, 62 FR 67532, Dec. 24, 1997]