StacksVerified U.S. regulatory reference

30 CFR §56.4401

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Fixed, unburied, flammable or combustible liquid storage tanks shall be securely mounted on firm foundations. Piping shall be provided with flexible connections or other special fittings where necessary to prevent leaks caused by tanks settling.