StacksVerified U.S. regulatory reference

49 CFR §178.346-4

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)All outlets on each tank must conform to § 178.345-11 and this section.
  2. (b)External self-closing stop-valves are not authorized as an alternative to internal self-closing stop-valves on loading/unloading outlets.