According to Illinois statute 625 ILCS 5/15-112(a), police officers only need a reason to believe that a truck is overweight in order to pull over the driver and require them to submit to the weighing of their truck. The officer can use portable or stationary scales or, if not available, the officer can require that the vehicle be driven to the nearest available scale. If the driver refuses to stop and submit his vehicle and load to weighing or removes any part of the load prior to weighing, he will be charged with this offense and face fines. In such cases, the driver could also face charges of fleeing and eluding. CDL holders need to be careful to avoid any and all offenses due to the potential impact on their driving record, insurance and employment.
Overweight laws are put in place because of the potential damage to roadways caused by overweight commercial vehicles. Excessive weight on certain roadways, which are not built to sustain such weight, can cause wear and tear or major damage.
According to 625 ILCS 5/15-113, the amount of the fine for an overweight truck shall be calculated in accordance to the schedule below (note that additional court costs and surcharges are often added to the amount of the fine). Please note: overweight fines in the City of Chicago can be found under 9-72-080 of the Chicago Municipal Code.