StacksVerified U.S. regulatory reference

46 CFR §154.802

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Cargo tanks with more than one relief valve setting must have one of the following arrangements:
  1. (a)Relief valves that:
    1. (1)Are set and sealed under § 154.801(c);
    2. (2)Have the capacity under § 154.806; and
    3. (3)Are interlocked so that cargo tank venting can occur at any time.
  2. (b)Relief valves that have spacer pieces or springs that:
    1. (1)Change the set pressure without pressure testing to verify the new setting; and
    2. (2)Can be installed without breaking the sealing wire required under § 154.801(c)(3).