StacksVerified U.S. regulatory reference

46 CFR §154.544

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The quick-closing shut-off valve under §§ 154.530, 154.532 and 154.538 must:
  1. (a)Be a shut-off valve;
  2. (b)Close from the time of actuation in 30 seconds or less;
  3. (c)Be the fail-closed type; and
  4. (d)Be capable of local manual closing.