One of the major leading causes of worksite deaths is the OSHA Fatal Four. Therefore, every construction employee needs to have an accurate understanding of Fatal Four hazards. WHAT IS HAZWOPER TRAINING AND WHO REQUIRES IT? HAZWOPER is designed to reduce the risks of chemical exposure to workers employed in one of three specific activities: Enroll your 360 OSHA 30 and complete your construction safety training online! Enroll your osha 10 construction with oshaoutreachcourses.com all our OSHA courses are authorized and approved by OSHA.