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 296-307, WAC.

WISHA policies in effect as of 10/10/2019. View all policies by Related WAC code.

Referenced WAC Policies

Agriculture, Safety standards for
(Chapter 296-307, WAC)

Non-Agricultural Use of Pesticides (WIIM 98-2-A)
Pesticides in Agriculture (WRD 33.25)
Head Protection and All-Terrain Vehicles (ATVs) (WRD 5.92)
Sheepherder Housing (WRD 33.72)
Cholinesterase Monitoring (WRD 33.27)
Rollover Protective Structures (ROPS) and Low-Profile Tractors (WRD 33.20)
Outdoor Heat Exposure Enforcement Procedures (WRD 10.15)
Bathroom and Toilet Facility Access (WRD 5.98)
Field Sanitation for Agriculture Workers (WRD 33.80)
WISHA 10 Training for Agriculture (WRD 33.95)
Pre-Commercial Thinning (PCT) (WRD 20.85)

Cholinesterase Monitoring
(WAC 296-307-148 through 14845)

Cholinesterase Monitoring (WRD 33.27)


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