What does the acronym DOT stand for in the context of jurisdictional piping?

In the context of jurisdictional piping, DOT stands for the Department of Transportation. This is the federal agency responsible for ensuring safe and efficient transportation systems across the United States, including those that pertain to pipeline safety. The Department of Transportation has oversight of the transportation of hazardous materials, including natural gas and other fuels, thereby playing a critical role in the regulation and safety of gas piping systems. Understanding the role of the DOT is essential for those involved in gas piping inspection and safety, as it provides the framework and regulations that guide construction, maintenance, and safety protocols in the industry. Other options listed do not pertain to the regulation of piping systems or have no direct connection to the safe transportation of gas products.