TxDOT requires that each truck used on a seal coat contract have a unique identifying number attached similar to that shown in Figure 7‑41. The number must be securely attached and clearly legible throughout the project.

This number is important for enabling the inspector to identify each truck on the project at a glance. Every truck must be inspected before the project begins, and the bed of each truck must be measured. It would be possible to substitute an unauthorized truck on the job if numbers were not plainly and immediately identifiable. The identification number, the truck bed measurements, and cubic yard capacity should be recorded.