Which agency regulates pipelines carrying hazardous materials across state borders?

• A. EPA
• B. DOT
• C. OSHA
• D. FEMA

Answer: (B)

The regulation of pipelines that transport hazardous materials across state lines falls under the jurisdiction of the Department of Transportation (DOT). This is primarily because the DOT is responsible for ensuring the safe and efficient movement of transportation systems across the United States, which includes overseeing the safety aspects of hazardous materials transportation.

The DOT, specifically through its Pipeline and Hazardous Materials Safety Administration (PHMSA), establishes regulations and safety standards for the operation of these pipelines. This includes mandates for construction, maintenance, operation, and emergency preparedness to minimize the risks associated with transporting hazardous substances.

While the EPA is involved in environmental protection and can regulate aspects related to hazardous materials, its focus is not specifically on the regulation of pipelines. OSHA focuses on workplace safety and health standards, while FEMA is primarily concerned with disaster response and preparedness rather than the regulation of transportation systems, making them less relevant for this specific context.