Construction and Demolition Operations – Safety Requirements for Temporary Floor Holes, Wall Openings, Stairways and Other Unprotected Edges
standard by American Society of Safety Engineers, 02/16/1996
Construction and Demolition Operations – Safety Requirements for Temporary Floor Holes, Wall Openings, Stairways and Other Unprotected Edges
standard by American Society of Safety Engineers, 03/23/2007
American National Standard for Construction and Demolition Operations – Safety Requirements for Pile Installation and Extraction Operations
standard by American Society of Safety Engineers, 03/24/2008