Yes, we do! WSO offers three study guides: WSO Professional Level (WSO-CSE, -CSM, -CSSD, and -CSS); WSO Hazardous Materials (WSO-CHMT, -CHMS, and -CHME); and the WSO Entry Level. Please contact the WSO Membership and Certification Coordinator for more information or to order: 1-660-747-3132 or certification@worldsafety.org.
