---
kind: "section"
citation: "46 C.F.R. § 182.710"
title: "46"
number: "182.710"
heading: "Piping for vital systems."
url: "https://uscodex.org/cfr/46/182.710"
---

# §182.710. Piping for vital systems.

- (a) **Vital systems are those systems that are vital to a vessel's survivability and safety.** For the purpose of this part the following are vital systems:
  - (1) Fuel system;
  - (2) Fire main;
  - (3) Carbon dioxide, Halon 1301, and clean agent systems;
  - (4) Bilge system;
  - (5) Steering system;
  - (6) Propulsion system and its necessary auxiliaries and controls;
  - (7) Ship's service and emergency electrical generation system and its necessary auxiliaries; and
  - (8) A marine engineering system identified by the cognizant OCMI as being crucial to the survival of the vessel or to the protection of the personnel on board.
- (b) For the purpose of this part, a system not identified in [paragraph (a)](#a) of this section is a non-vital system.
- (c) **Piping used in a vital system must—**
  - (1) **Be composed of ferrous materials except when—**
    - (i) Nonmetallic piping materials are permitted by [§ 182.720](/cfr/46/182.720.md); or
    - (ii) Nonferrous metallic piping materials are permitted by [§ 182.730](/cfr/46/182.730.md); and
  - (2) If subject to a pressure of more than 1,034 kPa (150 psig), be designed, fabricated, and inspected in accordance with the principles of ANSI B 31.1 (incorporated by reference; see [46 CFR 175.600](/cfr/46/175.600.md)) or other standard specified by the Commandant.

## Notes

### Amendments

[CGD 85-080, 61 FR 986, Jan. 10, 1996, as amended by USCG-2003-16630, 73 FR 65209, Oct. 31, 2008; USCG-2006-24797, 77 FR 33892, June 7, 2012]

### Authority

Authority: 46 U.S.C. 3306; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; DHS Delegation No. 00170.1, Revision No. 01.4.

### Source

Source: CGD 85-080, 61 FR 986, Jan. 10, 1996, unless otherwise noted.

### Amendments

[CGD 85-080, 61 FR 986, Jan. 10, 1996, as amended by USCG-2003-16630, 73 FR 65209, Oct. 31, 2008; USCG-2006-24797, 77 FR 33892, June 7, 2012]