OSHA estimates that an approximate number of 2 million construction workers are exposed to respirable crystalline silica in over 600,000 workplaces and 295,000 workers in over 75,000 general industry and maritime workplaces. Thus, Federal OSHA requirements pertaining to respirable crystalline silica in both 29 CFR 1926.1153 (Construction) and 29 CFR 1910.1053 (General Industry/Maritime) went into effect June 23, 2016.

DOSH did not have a standard that specifically addressed respirable crystalline silica exposure in the workplace, so we are combining OSHA's 2 rules into an entirely new chapter to ensure that Washington's occupational safety and health rules are "at least as effective as" those created by OSHA.

For detailed information regarding the stakeholder meetings held, the preliminary draft, and any other important documents, see below.


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