In most cases, Moldex half mask N95 respirators (disposable or reusable) may be used, in conjunction with the other elements of a comprehensive compliance program.
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Please also see CAL/OSHA RESPIRABLE CRYSTALLINE SILICA STANDARD FOR CONSTRUCTION.
Employer obligations under the new Respirable Crystalline Silica standard for construction, found in Title 8, section 1532.3 of the California Code of Regulations, were scheduled to commence on June 23, 2017.
However, Cal/OSHA will not enforce those obligations until September 23, 2017. This synchronizes with federal OSHA’s plan to delay enforcement of their corresponding standard.
In contrast, unlike federal OSHA, Cal/OSHA’s new permissible exposure limit for respirable crystalline silica of 0.05 milligrams per cubic meter (0.05 mg/M3), found in Title 8 section 5155, Table AC-1, already went into effect on October 17, 2016. In addition, employers must continue to meet the requirements of Title 8 section 1530.1 to control employee exposures to dust created by operations conducted on concrete or masonry materials.
Per Title 8 section 5204, all employer obligations, except as otherwise stated in the standard, commence on June 23, 2018