Washington Employer's Guide to the Hazard Communication Rule is a comprehensive guide published by the Washington State Department of Labor & Industries (L&I) to help employers comply with the requirements of the Washington State Hazard Communication Rule (WAC 296-901-14005). The guide provides employers with an overview of the rule and its requirements, including the need to identify, assess, and communicate hazardous materials; train workers; and maintain records. It also provides information on developing a written Hazard Communication Program, labeling, safety data sheets, and other related topics. The guide is available in both printed and online versions. Types of Washington Employer's Guide to the Hazard Communication Rule include: 1. Printed version 2. Online version.