Washington Administrative Code
Title 296 - Labor and Industries, Department of
Chapter 296-840 - Respirable crystalline silica
Section 296-840-160 - Effective dates
Universal Citation: WA Admin Code 296-840-160
Current through Register Vol. 24-06, March 15, 2024
This chapter becomes effective on April 23, 2018. Employers must comply with obligations of this chapter in accordance with the following:
(1) For occupational exposures to respirable crystalline silica in construction work, employers must comply with all obligations of this chapter by October 1, 2018. This includes the sample analysis requirement.
(2) For all occupational exposures to respirable crystalline silica other than construction work, employers must comply with this chapter by July 1, 2019, except as follows:
(a) Where
employee exposure to respirable crystalline silica is above the PEL
for thirty or more days per year medical surveillance requirements in
WAC 296-840-145 must be complied with by July 1, 2019.
(b) Where employee exposure to
respirable crystalline silica is at or above the action level for
thirty or more days per year medical surveillance requirements in WAC
296-840-145 must be complied with by June 23, 2020.
(c) For hydraulic fracturing
operations in the oil and gas industry, obligations for engineering
controls under WAC 296-840-120(1) begin July 1, 2022.
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