While Hazardous Waste Operations and Emergency Response (HAZWOPER) is a specific certification and training program, many related jobs require the skills gained through the process. Any job position that includes high exposure to toxins, has lower levels of oxygen in the atmosphere, involves duties with a high risk of injury or death, or could present a fire or explosion hazard may require a HAZWOPER certification. If you work in mines and oil fields, you must have this certification. Safety managers, HAZMAT supervisors, and personnel that process hazardous material or fulfill similar responsibilities need the certification. Truck drivers who transport dangerous chemicals and emergency responders must receive the training as well.