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Title 49

Displaying title 49, up to date as of 7/20/2026. Title 49 was last amended 7/14/2026.
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  1. Title 49 —Transportation
  2. Subtitle B —Other Regulations Relating to Transportation
  3. Chapter I —Pipeline and Hazardous Materials Safety Administration, Department of Transportation
  4. Subchapter C —Hazardous Materials Regulations
  5. Part 172   View Full Text
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eCFR Content

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Title 49TransportationPart / Section
Subtitle BOther Regulations Relating to Transportation100 – 1699
Chapter IPipeline and Hazardous Materials Safety Administration, Department of Transportation100 – 199
Subchapter CHazardous Materials Regulations171 – 185
Part 172Hazardous Materials Table, Special Provisions, Hazardous Materials Communications, Emergency Response Information, Training Requirements, and Security Plans172.1 – 172.822
Subpart AGeneral172.1 – 172.3
§ 172.1Purpose and scope.
§ 172.3Applicability.
Subpart BTable of Hazardous Materials and Special Provisions172.101 – 172.102
§ 172.101Purpose and use of the hazardous materials table.
§ 172.102Special provisions.
Subpart CShipping Papers172.200 – 172.205
Subpart DMarking172.300 – 172.338
Subpart ELabeling172.400 – 172.450
Subpart FPlacarding172.500 – 172.560
Subpart GEmergency Response Information172.600 – 172.606
§ 172.600Applicability and general requirements.
§ 172.602Emergency response information.
§ 172.604Emergency response telephone number.
§ 172.606Carrier information contact.
Subpart HTraining172.700 – 172.704
§ 172.700Purpose and scope.
§ 172.701Federal-State relationship.
§ 172.702Applicability and responsibility for training and testing.
§ 172.704Training requirements.
Subpart ISafety and Security Plans172.800 – 172.822
Appendix A to Part 172
Office of Hazardous Materials Transportation Color Tolerance Charts and Tables
Appendix B to Part 172
Trefoil Symbol
Appendix C to Part 172
Dimensional Specifications for Recommended Placard Holder
Appendix D to Part 172
Rail Risk Analysis Factors
eCFR Content