Washington State Department of Labor and Industries, Division of Occupational Safety and Health, DOSH Directive 1.70 (Updated July 7, 2021) (Ex. DUT-WA-018)
Washington State Department of Labor and Industries (DOSH), L&I Publication F414-164-000 (July 21, 2020) (Ex. DUT-WA-016)
Washington State Department of Labor and Industries, Division of Occupational Safety and Health, DOSH Directive 1.70 (Updated May 15, 2020) (Ex. DUT-WA-017)
