HAZWOPER applies to employers and employees who provide: Cleanup operations, corrective actions, voluntary cleanup, transport, storage, disposal (TSD), and emergency response. The 8-40 Hr. HAZWOPER courses provides OSHA-compliant training to field personnel involved in activities that "potentially" expose them to the threat of any hazardous substance. Hazardous waste workers must know and understand regulatory requirements set forth by OSHA, USDOT, EPA, and other local, state, and federal agencies. HAZWOPER training is required training for various workforces e.g. disaster workers, environmental cleanup contractors, oil and gas workers, chemical plant operators, public and private hazmat teams, unexploded ordnance (UXO) contractors, and more. The HAZWOPER Handbook is also designed for those workers who need to reference particular areas within the regulations or verify operational requirements.