This is from one of the other sites you guys referred to ,,,, he stated this referred to a TAG type trailer
quote;
Quote: Federal regs define race car haulers as full trailers, meaning the weight of the trailer and contents are fully supported by the trailer axles, not the trucks. Truck and trailer total weight are used to compute loads for semi trailers where the weight of the load in the trailer is partially supported by the trailer and partly by the truck axles.
