46 C.F.R. § 56.20-7 Ends.
Title 46 - Shipping
(a) Valves may be used with flanged, threaded, butt welding, socket welding or other ends in accordance with applicable standards as specified in subpart 56.60.
Title 46: Shipping
PART 56—PIPING SYSTEMS AND APPURTENANCES
Subpart 56.20—Valves
§ 56.20-7 Ends.