{"data":{"id":"us/46-cfr-56.70-20","jurisdiction":"us","citation":"46 CFR 56.70-20","heading":"-20 Qualification, general.","body":"(a) Qualification of welding procedures and welders is required, and must comply with the requirements of Section IX of the ASME BPVC (incorporated by reference; see § 56.01-2) as modified by part 57 of this subchapter.\n(b) Each butt-welded joint of Class I of Class I-L piping must be marked with the welder's identification symbol. Dies must not be used to mark the pipe where the pressure exceeds 600 psig or the temperature exceeds 750 °F or in Class I-L systems.","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER F—MARINE ENGINEERING","PART 56—PIPING SYSTEMS AND APPURTENANCES","Subpart 56.70—Welding"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-46.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:22Z","sha256":"df66b1839f16e06949e96b758c067c31fe2d7ea0d542ca221ad5f34f6b1cf632","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-56.70-15","next":"us/46-cfr-56.75-5"},"notice":"GroundRules: Original legal text. Not legal advice."}