Idle Reduction Weight Exemption

Any motor vehicle equipped with a qualified auxiliary power unit or idle reduction technology may exceed the state’s gross, total axle, or bridge formula vehicle weight limits by up to 550 pounds to compensate for the additional weight of the idle reduction technology. To be eligible for the weight exemption, the vehicle operator must be able to provide written proof of idle reduction technology weight and demonstrate or certify that it is fully functional at all times.

(Reference 8 Code of Colorado Regulations 1507-28)