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Legislative & Special Projects, Pine Bluff Sand & Gravel
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Respirable Crystalline Silica in Construction

OSHA releases interim enforcement guidance for the respirable crystalline silica in construction standard, 29 CFR 1926.1153. See the October 19, 2017 memorandum.

OSHA begins enforcement of the respirable crystalline silica standard for construction on September 23rd, while offering compliance assistance to employers making good faith efforts to comply during the first 30 days. See the September 20, 2017 memorandum.

OSHA delayed enforcement of the respirable crystalline silica standard for construction from June 23, 2017 until September 23, 2017, to conduct additional outreach and provide educational materials and guidance for employers. See the April 6, 2017 memorandum.

 

Introduction

On March 25, 2016, the Occupational Safety and Health Administration (OSHA) issued their final rule on respirable crystalline silica. The rule is comprised of two standards, one for the Construction Industry (§1926.1153) and one for General Industry and Maritime (§1910.1053). The construction industry standard applies to all occupational exposures to respirable crystalline silica in construction work and sets a new Permissible Exposure Limit (PEL) of 50 micrograms of respirable crystalline silica per cubic meter of air (50.0 µg/m3) as an 8-hour Time-Weighted Average (TWA).  The standard also establishes an Action Level (AL) of 25 µg/m3 as an 8-hour TWA. The standard became effective on June 23, 2016. The construction industry was initially provided one year – until June 23, 2017 – to comply with all provisions except for the requirements for methods of sample analysis. However, on April 6, 2017, OSHA issued a memo to Regional Administrators delaying enforcement until September 23, 2017. The following resources provide a wealth of information on the new rule.

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