---
kind: "section"
citation: "46 C.F.R. § 154.514"
title: "46"
number: "154.514"
heading: "Piping: Electrical bonding."
url: "https://uscodex.org/cfr/46/154.514"
---

# §154.514. Piping: Electrical bonding.

- (a) Cargo tanks or piping that are separated from the hull structure by thermal isolation must be electrically bonded to the hull structure by a method under [paragraph (c)](#c) of this section.
- (b) A pipe joint or a hose connection fitting that has a gasket must be electrically bonded by a method under [paragraph (c)](#c) of this section that bonds:
  - (1) Both sides of the connection to the hull structure; or
  - (2) **Each side of the connection to the other side.**
- (c) An electrical bond must be made by at least one of the following methods:
  - (1) **A metal bonding strap attached by welding or bolting.**
  - (2) **Two or more bolts that give metal to metal contact between the bolts and the parts to be bonded.**
  - (3) **Metal to metal contact between adjacent parts under designed operating conditions.**

## Notes

### Authority

Authority: 46 U.S.C. 3703, 9101; Department of Homeland Security Delegation No. 0170.1.

### Source

Source: CGD 74-289, 44 FR 26009, May 3, 1979, unless otherwise noted.