State Vehicle Fuel Economy Requirements
State contracts for the purchase or lease of new passenger automobiles must require the procurement of vehicle models that, according to the most current ratings published by the U.S. Environmental Protection Agency, can achieve at least the minimum average fuel economy in miles per gallon as specified in the federal Corporate Average Fuel Economy requirements. This requirement does not apply to station wagons, vans, four-wheel drive vehicles, and emergency vehicles. Additionally, the Chief Procurement Officer may make exemptions when there is a demonstrated need for a vehicle that does not meet the minimum average fuel economy standards.
(Reference 30 Illinois Compiled Statutes 500/45-40)