Waterways - HMT Appendix A

Hazardous materials often fit more than one category, such as hazardous substances, hazardous wastes, and marine pollutants. A hazardous substance is a hazardous material that is specifically listed in a particular part of the HMR and that often requires additional regulation. To determine if a material is a hazardous substance, you must use Table 1 and Table 2 of Appendix A of the HMT.

Table 1 of Appendix A of §172.101 lists all hazardous substances other than radionuclides. Table 1 also includes the reportable quantities listed in kilograms and pounds. If the material meets or exceeds the reportable quantity listed, it must be regulated as a hazardous substance. Table 2 of Appendix A lists radionuclides that are hazardous substances and their respective reportable quantities.

To learn more about Waterways HAZMAT visit our DOT Waterways HAZMAT Online Training web page.