# Federal Register
1 - 1910.253 - 77:13969-13970 - Revising Standards Referenced in the Acetylene Standard - PDF
2 - 1910.253 - 74:57883-57884 - Revising Standards Referenced in the Acetylene Standard - PDF
3 - 1910.253 - 55:25093-94 - Welding, Cutting and Brazing; Technical Amendments to Final Rule