Federal Registers
- 1910.253 - 03/08/2012 - 77:13969-13970 - Revising Standards Referenced in the Acetylene Standard - PDF
- 1910.253 - 11/10/2009 - 74:57883-57884 - Revising Standards Referenced in the Acetylene Standard - PDF
- 1910.253 - 06/20/1990 - 55:25093-94 - Welding, Cutting and Brazing; Technical Amendments to Final Rule