Who has oversight over interstate pipelines?

The USDOT Pipeline and Hazardous Materials Safety Administration (PHMSA), Office of Pipeline Safety (OPS), and its partnering state regulatory agencies inspect transmission pipelines and enforce the regulations to better assure safety and reduce risk. In addition to federal government regulatory requirements, standards and recommended practices are developed by industry organizations, such as the American Petroleum Institute, to provide further guidance on the safe construction, operation, and maintenance of pipelines.