Off-Highway is built specifically to move semi-trailers around warehouses, trucking terminals, ship ports, distribution centers, or any place involving a semi-trailer moving in an environment where it would not be accessing a public road. Off-Highway yard trucks top-speed of 25 MPH and can be programmed to run at any MPH under 25.
DOT has legal access to public roadways. In general, DOT yard trucks are not permitted to run on the interstate highway system. DOT yard trucks must have an annual inspection by a license-plated vehicle with a V.I.N. number and title. The DOT yard trucks will have a top speed of around 33 MPH or more depending on years and ABS braking system.