Which agency is primarily responsible for the regulation of propane in the United States?

In the context of regulating propane in the United States, the Environmental Protection Agency (EPA) plays a key role, particularly in terms of ensuring that propane and other fuels comply with environmental regulations. The EPA is tasked with managing pollution control and enforcing air quality standards, which includes overseeing emissions from various sources, including those that utilize propane.

While the Consumer Product Safety Commission focuses on consumer products and their safety, and the Occupational Safety and Health Administration regulates workplace safety, their primary functions do not encompass the comprehensive oversight of propane specifically. The Department of Transportation does play a crucial role in the safe transportation of hazardous materials, including propane, but its focus is narrower than that of the EPA when it comes to broader environmental impacts and regulations. Thus, the EPA is highlighted as the agency with the overarching responsibility for regulating propane in relation to environmental standards and safety measures.