Historical
NFPA 473-1997
NFPA 473: Standard for Competencies for EMS Personnel Responding to Hazardous. 1997, 1997 Edition
Identifies the levels of competence required of EMS personnel who respond to hazardous materials incidents. It specifically covers the requirements for basic life support and advanced life support personnel in the prehospital setting.
National Fire Protection Association [nfpa]