| GCat | Government and Legal |
| MCat | Regulations |
| SCat | Hazmat |
Full text of DOT regulations, rulings, interpretations and guidance related to hazardous materials transport.
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Hot Topics: Trucking
DOT Hazmat Special Permits and Approvals [3566] 
How to file for exemptions and approvals to DOT hazardous material regulations
DOT Interpretations to the Hazardous Materials Regulations [3562]
Viewable by Information Date or Standard Number
Federal HazMat Laws [3560]
Full text of federal haz mat laws, exemptions, interpretations, rulemakings, etc.
Federal Hazmat Transportation Law Rulemaking [10695]
Hazardous Materials Safety Rulemakings and Federal Register Notices
Hazmat Interpretations by Regulation [10693]
Regulatory interpretations of hazmat transportation requirements
Transportation of Explosives and Blasting and Firing Agents [6455]
US DOT regulations for shippers of hazardous materials
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