[Header] PHMSA - U.S. Department of Transportation - Pipeline and Hazardous materials Safety Adminis
PHMSA Home
Hazmat Interpretations by Regulation

Search Interpretations

Letters Related to 49 CFR Title
107 Hazardous Materials Program Procedures
130 Oil Spill Prevention And Response Plans
171 General Information, Regulations, and Definitions
172 Hazardous Materials Table, Special Provisions, Hazardous Materials Communications, Emergency Response Information, and Training Requirements
173 Shippers-General Requirements For Shipments and Packagings
174 Carriage by Rail
175 Carriage By Aircraft
176 Carriage By Vessel
177 Carriage By Public Highway
178 Specifications For Packagings
179 Specifications for Tank Cars
180 Continuing qualification and maintenance of packagings
194 Emergency Response for On-Shore Pipelines
Careers  |  Contact Us  |  No Fear  |  Privacy Policy  |  FOIA  |  Accessibility  |  FAQs  |  Web Policies  |  Site Map  |  Download Acrobat