Industrial Hygiene Services–Compliance with the New OSHA Respirable Silica Standard

The Occupational Safety and Health Administration (OSHA) has issued its final rule on respirable crystalline silica for general industry and construction to go into effect on June 23, 2016.  The new standard lowers the Permissible Exposure Limit (PEL) for respirable silica to 0.05 mg/m3 with an action level (AL) of 0.025 mg/m3. Exposures above the AL trigger certain compliance items such as baseline exposure monitoring, personal protective equipment, regulated work areas and/or medical surveillance. When the PEL is exceeded, compliance with all sections of the OSHA standard is mandatory.  Long-term exposure to elevated concentrations of free silica can lead to the progressive lung disease, silicosis.

Employers in general industry and maritime have until June 23, 2018 to comply with the updated regulations.  Employers in the construction industry have until June 23, 2017 to comply with the updated regulations.

Click on the link below to learn more about specific industry compliance dates, written exposure control plans, exposure control methods and alternative control methods that accompany the new rule.  Aires Consulting, a division of Gallagher Bassett Services, Inc. is a full service Environmental, Occupational Health and Safety provider that can help you determine if your organization will be in compliance with the new regulation.  Aires’ industrial hygiene department can assist with compliance to the new silica standard for general industry and construction activities.


For more information, contact Aires Consulting at 1.800.247.3799, send an email to or visit their website at