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PART 57 - WELDING AND BRAZING Authority:46 U.S.C. 3306, 3703, E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; 49 CFR 1.46. Source:CGFR 68-82, 33 FR 18872, Dec. 18, 1968, unless otherwise noted.