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FIGURE 13.10 The North American Emergency Response Guidebook.

13.7 HAZARDOUS MATERIALS INCIDENTS (49 CFR PART 171)

From 1992 to 2001 hazardous waste incidents on the highway predominated over all other modes
of transportation (Table 13.5). After 1996, the number of reported incidents began a steady down-
ward trend. The total number of highway hazardous waste incidents totaled 4317 from 1996 to
2001. Rail incidents were second in number over this time period, with incidents ranging between
23 and 40 per year. A total of 12 air-related incidents were reported over the period 1996 to 2001
(U.S. DOT, n.d.).
Carriers of hazardous materials are required to report certain unintentional releases that
occurred during transportation of hazardous materials (Figure 13.12 and Figure 13.13). The
requirements appear in 49 CFR Part 171, §§171.15 and 171.16. There are also requirements in
49 CFR Parts 174 to 177 that require reporting of hazardous materials incidents (49 CFR
§§174.45 [rail], 175.45 [air], 176.48 [vessel], and 177.807 [highway]). Two phases of incident
reporting are required in the regulations. Section 171.15 covers immediate telephone notification
following an incident and Part 171.16 outlines written reporting procedures (e.g., Incident Report
Form 5800.1).