Which regulations govern hazmat transportation in the United States?

• A. 42 CFR Parts 1–50
• B. 49 CFR Parts 100–185
• C. 29 CFR Part 1926
• D. 16 CFR Part 130

Answer: (B)

In the United States, hazardous materials transportation is governed by the Federal Hazardous Materials Regulations found in Title 49 of the Code of Federal Regulations, specifically Parts 100 through 185. These parts cover the general rules, the Hazardous Materials Table, packaging and shipping requirements, labeling and placarding, training, and security for hazmat shipments, and are administered by the Pipeline and Hazardous Materials Safety Administration (PHMSA) with involvement from other DOT agencies. The other options pertain to different domains—public health regulations, OSHA construction safety standards, and consumer product safety rules—not hazmat transportation.