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Title 49

Displaying title 49, up to date as of 8/06/2026. Title 49 was last amended 8/04/2026.
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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 —Hazardous Materials Table, Special Provisions, Hazardous Materials Communications, Emergency Response Information, Training Requirements, and Security Plans
  6. Subpart E   View Full Text
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eCFR Content

The Code of Federal Regulations (CFR) is the official legal print publication containing the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government. The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. It is not an official legal edition of the CFR.

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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 ELabeling172.400 – 172.450
§ 172.400General labeling requirements.
§ 172.400aExceptions from labeling.
§ 172.401Prohibited labeling.
§ 172.402Additional labeling requirements.
§ 172.403Class 7 (radioactive) material.
§ 172.404Labels for mixed and consolidated packaging.
§ 172.405Authorized label modifications.
§ 172.406Placement of labels.
§ 172.407Label specifications.
§ 172.411EXPLOSIVE 1.1, 1.2, 1.3, 1.4, 1.5 and 1.6 labels, and EXPLOSIVE Subsidiary label.
§ 172.415NON-FLAMMABLE GAS label.
§ 172.416POISON GAS label.
§ 172.417FLAMMABLE GAS label.
§ 172.419FLAMMABLE LIQUID label.
§ 172.420FLAMMABLE SOLID label.
§ 172.422SPONTANEOUSLY COMBUSTIBLE label.
§ 172.423DANGEROUS WHEN WET label.
§ 172.426OXIDIZER label.
§ 172.427ORGANIC PEROXIDE label.
§ 172.429POISON INHALATION HAZARD label.
§ 172.430POISON label.
§ 172.431 [Reserved]
§ 172.432INFECTIOUS SUBSTANCE label.
§ 172.436RADIOACTIVE WHITE-I label.
§ 172.438RADIOACTIVE YELLOW-II label.
§ 172.440RADIOACTIVE YELLOW-III label.
§ 172.441FISSILE label.
§ 172.442CORROSIVE label.
§ 172.444 [Reserved]
§ 172.446CLASS 9 label.
§ 172.447LITHIUM BATTERY label.
§ 172.448CARGO AIRCRAFT ONLY label.
§ 172.450EMPTY label.
eCFR Content