DOT Standards refer to the regulations set by the U.S. Department of Transportation to ensure safety and efficiency in transportation systems. These standards cover various modes of transport, including roadways, airways, and railways, and are designed to protect public safety, improve infrastructure, and promote environmental sustainability. The standards include guidelines for vehicle performance, maintenance, and safety features, as well as requirements for transportation infrastructure like bridges and highways. Compliance with DOT Standards is essential for manufacturers, operators, and state agencies to ensure that transportation systems function effectively and safely for all users.