Idle Reduction and Natural Gas Vehicle (NGV) Weight Exemption

Any vehicle or combination of vehicles equipped with fully functional idle reduction technology may exceed the state’s gross and axle weight limits by up to 550 pounds (lbs.) to compensate for the additional weight of the idle reduction technology. To qualify, the vehicle operator must be able to prove the weight of the idle reduction technology with written certification and demonstrate that the idle reduction technology is fully functional at all times.

NGVs may exceed the weight limits by an amount equal to the difference of the weight of the natural gas tank and fueling system and the weight of a comparable diesel tank and fueling system or by up to 2,000 lbs., whichever is less.

(Reference Wisconsin Statutes 348.15(3)(f) and 348.15(3)(h))