---
kind: "section"
citation: "46 C.F.R. § 154.532"
title: "46"
number: "154.532"
heading: "Valves: Cargo tank MARVS greater than 69 kPa gauge (10 psig)."
url: "https://uscodex.org/cfr/46/154.532"
---

# §154.532. Valves: Cargo tank MARVS greater than 69 kPa gauge (10 psig).

- (a) Except connections for tank safety relief valves and except for liquid level gauging devices other than those under §§ [154.536](/cfr/46/154.536.md) and [154.1310](/cfr/46/154.1310.md), liquid and vapor connections on a cargo tank with a MARVS greater than 69 kPa gauge (10 psig) must have, as close to the tank as practical, a:
  - (1) Stop valve capable of local manual operation; and
  - (2) **A remotely controlled quick-closing shut-off valve.**
- (b) If the nominal pipe size of a liquid or vapor connection is less than 50 mm (2 in.), an excess flow valve may be substituted for the quick-closing valve under [paragraph (a)](#a) of this section.
- (c) One valve may be substituted for the manual controlled stop valve and the remotely controlled quick-closing shut-off valve required under [paragraph (a)](#a) of this section if that valve:
  - (1) Meets §§ [154.540](/cfr/46/154.540.md) and [154.544](/cfr/46/154.544.md); and
  - (2) **Is capable of local manual operation.**

## 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.