By Related Rule (WAC)

WISHA provides rule guidance to staff through two types of policies:

  1. WISHA Interim Operations and Interpretive Memoranda (WIIM)
  2. WISHA Regional Directives (WRD)

The WIIMs and WRDs do not:

  • Substitute for the rule or requirement referenced
  • Create additional obligations for employers

Policies related to Chapter 296-842, WAC.

WISHA policies in effect as of 7/31/2019. View all policies by Related WAC code.

Referenced WAC Policies

(Chapter 296-842, WAC)

Chromium VI (WRD 12.80)
Enforcement guidance for the Longshoring Industry (WRD 22.95)
Review and Decertification of Asbestos Abatement Contractors, Supervisors, and Workers (WRD 23.70)
Tuberculosis Control in Health-Care Facilities (WRD 11.35)
Tuberculosis Control in Correctional Facilities (WRD 11.36)


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