---
kind: "section"
citation: "46 C.F.R. § 150.130"
title: "46"
number: "150.130"
heading: "Loading a cargo on vessels carrying cargoes with which it is incompatible."
url: "https://uscodex.org/cfr/46/150.130"
---

# §150.130. Loading a cargo on vessels carrying cargoes with which it is incompatible.


Except as described in [§ 150.160](/cfr/46/150.160.md), the person in charge of a vessel shall ensure that the containment system for a cargo that is a hazardous material meets the following requirements:

- (a) The containment system must separate the hazardous material or its residue from any cargo in table 1 with which it is incompatible by two barriers such as formed by a:
  - (1) Cofferdam;
  - (2) Empty tank;
  - (3) Void space;
  - (4) Cargo handling space;
  - (5) Tank containing a compatible cargo; or
  - (6) **Piping tunnel.**
- (b) **In this subpart, isolation across a cruciform joint is equivalent to isolation by two barriers.**
- (c) The containment system for the hazardous material must not have a piping or venting system that connects to a containment system carrying a cargo with which the hazardous material is incompatible. Any such piping or venting system must have been separated from the containment system carrying the incompatible cargo by:
  - (1) Removing a valve or spool piece and blanking off the exposed pipe ends, or
  - (2) Installing two spectacle flanges in series with a means of detecting leakage into the pipe between the spectacle flanges.

## Notes

### Amendments

[CGD 75-59, 45 FR 70263, Oct. 23, 1980, as amended at USCG-2013-0423, 85 FR 21674, Apr. 17, 2020]

### Authority

Authority: 46 U.S.C. 3306, 3703; DHS Delegation No. 00170.1, Revision No. 01.3.

### Source

Source: CGD 75-59, 45 FR 70263, Oct. 23, 1980, unless otherwise noted.

### Amendments

[CGD 75-59, 45 FR 70263, Oct. 23, 1980, as amended at USCG-2013-0423, 85 FR 21674, Apr. 17, 2020]