Text For Citation: 01 Item/Group: 003C Hazard:

29 CFR 1910.146(d)(5)(i): Test conditions in the permit space to determine if acceptable entry conditions exist before entry is authorized to begin, except that, if isolation of the space is infeasible because the space is large or is part of a continuous system (such as a sewer), pre-entry testing shall be performed to the extent feasible before entry is authorized and, if entry is authorized, entry conditions shall be continuously monitored in the areas where authorized entrants are working; a. On or about May 25, 2018, an employee cleaning the inside of a semi-truck tanker was pronounced dead following a confined space rescue. The employee was found to have suffered chemical asphyxia by vitiated atmosphere, hydrogen sulfide and hydrogen cyanide gases. Where the hazardous atmosphere had not been eliminated prior to entry, and the space was to be treated as a permit required confined space, the space had not been tested for the presence of hydrogen sulfide and hydrogen cyanide.