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FAQ
If employee exposures will remain below the AL of 25 μg/m3 as an 8-hour TWA under any foreseeable conditions, does the standard require the employer to complete a written exposure control plan for the worksite?
No. None of the standard's requirements apply if, without implementing any controls, all employees’ exposures to silica will remain below the AL of 25 μg/m3 as an 8-hour TWA under any foreseeable conditions.