OSHA: Respirable Crystalline Silica Rule Corrected

OSHA corrects typographical errors in its respirable crystalline silica rule

On September 1, 2016 the Occupational Safety and Health Administration (OSHA) published a final rule correcting typographical errors in its respirable crystalline silica rule. The corrections change the formulas for the permissible exposure limits (PELs) that existed prior to OSHA’s new silica rule.


The existing PELs apply only to operations that are not covered by the new standards and covered industries during the time between the publication of the silica rule and the compliance dates listed in the final rule. These existing PELs will also continue to apply in the case of a regulatory delay, stay, or partial or full invalidation in a court challenge.

Sources :

OSHA, Final rule, correcting amendment, Occupational exposure to respirable crystalline silica, 81 FR 60272, September 1, 2016

Red-on-line, Jason Loh, “OSHA finalizes its crystalline silica exposure rule” March 25, 2016


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