CFR Title 49 - Transportation (Code of Federal Regulations) is the principal set of rules and regulations issued by the Departments of Transportation and Homeland Security regarding transportation and transportation related security.
Volume 3, Parts 178 to 199 covers Chapter 1 -- Pipeline and Hazardous Materials Safety Administration, Department of Transportation (continued).
Subchapter C – Hazardous Materials Regulations (continued)
Subchapter D -- Pipeline Safety
