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Illinois Idle Reduction Laws and Incentives


State Laws and Regulations

Idle Reduction Requirement

A person that operates a diesel powered motor vehicle in certain counties may not cause or allow the motor vehicle, when it is not in motion, to idle for more than a total of 10 minutes within any 60-minute period. Specified areas include the counties of Cook, DuPage, Lake, Kane, McHenry, Will, Madison, St. Clair, and Monroe, and the townships of Oswego (Kendall County) and Aux Sable and Goose Lake (Grundy County). Exceptions apply, including those pertaining to vehicle weight, traffic, auxiliary power use, and emergency vehicles. (Reference 625 Illinois Compiled Statutes 5/11-1429)