Vehicles for oversize load transportation need an oversized/overweight (OS/OW) permit and route from the Texas Department of Motor Vehicles (TxDMV) to travel on Texas roads. TxDMV is a government permit-granting body. However, there are many companies that issue permits as well. Reliable Permit Solutions,

A pilot vehicle, also called an escort vehicle, is an automobile used to escort oversize load transportation and convoys of large vehicles. Pilot cars are provided by licensed and insured companies that specialize in convoy escorts. On some loads, escort duties are also performed