[Code of Federal Regulations] [Title 41, Volume 1] [Revised as of July 1, 2005] From the U.S. Government Printing Office via GPO Access [CITE: 41CFR50-204.72] [Page 39] TITLE 41--PUBLIC CONTRACTS AND PROPERTY MANAGEMENT CHAPTER 50--PUBLIC CONTRACTS, DEPARTMENT OF LABOR PART 50-204_SAFETY AND HEALTH STANDARDS FOR FEDERAL SUPPLY CONTRACTS --Table of Contents Subpart D_Gases, Vapors, Fumes, Dusts, and Mists Sec. 50-204.72 Safe practices for welding and cutting on containers which have held combustibles. Welding or cutting, or both, on containers which have held flammable or combustible solids, liquids, or gases, or have contained substances which may produce flammable vapors or gases will not be attempted until the containers have been thoroughly cleaned, purged, or inerted in strict accordance with the rules and procedures embodied in American Welding Society Pamphlet A-6.0-65, edition of 1965. [35 FR 1015, Jan. 24, 1970]