Enforcement personnel refer to the IRP cab card as proof that the vehicle is properly registered. Apportioned vehicles not displaying a current license plate, current month and year decal, and a current cab card, valid temporary authorization permit, or a valid trip permit will be in violation of the law. The driver will be subject to citations, assessments, and fines in all jurisdictions traveled. It is the responsibility of the driver to be fully aware of the requirements in all jurisdictions prior to operating in those jurisdictions.
If a driver travels in a jurisdiction that is not listed on their cab card, that jurisdiction may impose fines on the driver, impound the driver's vehicle, or both.