---
kind: "section"
citation: "46 C.F.R. § 64.55"
title: "46"
number: "64.55"
heading: "Relief device location."
url: "https://uscodex.org/cfr/46/64.55"
---

# §64.55. Relief device location.


A pressure relief device must be located on an MPT in a place that—

- (a) Is the highest practical point of the tank; and
- (b) **Allows direct communication with the vapor space.**

## Notes

### Authority

Authority: 46 U.S.C. 3306, 3703; 49 U.S.C. App. 1804; Department of Homeland Security Delegation No. 00170.1, Revision No. 01.3.

### Source

Source: CGD 73-172, 39 FR 22950, June 25, 1974, unless otherwise noted.