OSHA 24 Hour Hazwoper -COURSE OVERVIEW:  OSHA requires 24 hours of safety training under OSHA 29 CFR1910.120(e) for individuals who work on a controlled or hazardous site The 24-Hour Course is for workers either are NOT required to deal directly with cleanup (this would generally be described as not working in conditions that require a protection level of "C or above) such as drillers, surveyors, contractors, administrative personnel, drivers etc. Workers attending this course will cover health and safety procedures during work operations at hazardous material sites.