ANSI-Z117.1 › Complete Document History
Safety Requirements for Confined Spaces

Complete Current Edition:
   2022 EDITION - Safety Requirements for Confined Spaces - Feb. 20, 2022

Obsolete Revision Information:
   2016 EDITION - Paper Format - Oct. 1, 2016
   2009 EDITION - Safety Requirements for Confined Spaces - Oct. 1, 2009
   2003 EDITION - Safety Requirements for Confined Spaces - Feb. 20, 2003
   1995 EDITION - Safety Requirements for Confined Spaces - June 6, 1995
   1989 EDITION - Safety Requirements for Confined Spaces - Oct. 5, 1989
   1977 EDITION - Safety Requirements for Confined Spaces - Jan. 1, 1977