---
kind: "section"
citation: "46 C.F.R. § 154.802"
title: "46"
number: "154.802"
heading: "Alternate pressure relief settings."
url: "https://uscodex.org/cfr/46/154.802"
---

# §154.802. Alternate pressure relief settings.


Cargo tanks with more than one relief valve setting must have one of the following arrangements:

- (a) **Relief valves that—**
  - (1) Are set and sealed under [§ 154.801(c)](/cfr/46/154.801.md?p=c);
  - (2) Have the capacity under [§ 154.806](/cfr/46/154.806.md); and
  - (3) **Are interlocked so that cargo tank venting can occur at any time.**
- (b) **Relief valves that have spacer pieces or springs that—**
  - (1) Change the set pressure without pressure testing to verify the new setting; and
  - (2) Can be installed without breaking the sealing wire required under [§ 154.801(c)(3)](/cfr/46/154.801.md?p=c-3).

## 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.