---
kind: "section"
citation: "46 C.F.R. § 154.701"
title: "46"
number: "154.701"
heading: "Cargo pressure and temperature control: General."
url: "https://uscodex.org/cfr/46/154.701"
---

# §154.701. Cargo pressure and temperature control: General.


Except as allowed under [§ 154.703](/cfr/46/154.703.md), cargo tanks must:

- (a) Have their safety relief valves set at a pressure equal to or greater than the vapor pressure of the cargo at 45 °C (113 °F) but not greater than the MARVS under [§ 154.405](/cfr/46/154.405.md); or
- (b) Be refrigerated by a system meeting [§ 154.702](/cfr/46/154.702.md), and each refrigerated incompatible cargo refrigerated by a separate system.

## 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.