US lawFederal (United States)RegulationsTitle 46 CFR — ShippingChapter I — COAST GUARD, DEPARTMENT OF HOMELAND SECURITYPart 56 — PIPING SYSTEMS AND APPURTENANCESSubpart 56.70—Welding56.70-146 C.F.R. § 56.70-1General.Last amended: 2024Year: 2026Length: 19 wordsOfficial source Cite as 46 C.F.R. § 56.70-1 (2026)The following generally applies to all types of welding processes. Alternatives must be approved by the Marine Safety Center.Next46 C.F.R. § 56.70-3