49 C.F.R. § 178.346-4 Outlets.
Title 49 - Transportation
(a) All outlets on each tank must conform to §178.345–11 and this section. (b) External self-closing stop-valves are not authorized as an alternative to internal self-closing stop-valves on loading/unloading outlets. [Amdt. 178–89, 54 FR 25029, June 12, 1989. Redesignated by Amdt. 178–112, 61 FR 18934, Apr. 29, 1996]
Title 49: Transportation
PART 178—SPECIFICATIONS FOR PACKAGINGS
Subpart J—Specifications for Containers for Motor Vehicle Transportation
§ 178.346-4 Outlets.

