1. Federal Emergency Management Agency: Guide for All-Hazard Emergency Operations Planning, State and Local Guide 101, 1996.
2. National Fire Protection Association 1600: Standard for Disaster/Emergency Management and Business Continuity Programs Current Edition, 2004.
3. U.S. Department of Transportation, Office of Hazardous Materials Safety, 2002.
4. CHEMTREC data, verbal communication, 2003.
5. Hazardous Materials Shipments;Office of Hazardous Materials Safety Research and Special Programs Administration,1998