By Related 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

The following is a list of all WISHA policies in effect as of 9/29/2009

Referenced WAC	Policies
Logging operations, Safety standards (Chapter 296-54, WAC)	WRD 20.55