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 296-99, WAC.

WISHA policies in effect as of 4/10/2013. View all policies by Related WAC code.

Referenced WAC	Policies
Grain handling facilities, Safety standards for (Chapter 296-99, WAC)	Grain Handling Facilities—Inspection Guidance and Standards Clarification (WRD 89-3B )