30 ILCS 617/10

(a) Each State agency shall designate a vehicle use officer to monitor the use of State-owned vehicles by that State agency. (b) Each State agency, with the assistance of the vehicle use officer, shall draft a vehicle use policy. All vehicle use policies, other than those drafted by a constitutional officer, shall be submitted to the Division of Vehicles within the Department of Central Management Services and shall be made publicly available on the Department's official Internet website. A vehicle use officer for a constitutional officer shall make the vehicle use policy publicly available on the constitutional officer's official Internet website. A vehicle use policy shall include the following: (1) a policy concerning take-home vehicles, including requirements for emergency use of take-home vehicles and restrictions on the use of take-home vehicles solely for commuting; and (2) procedures regarding daily vehicle use logs and mileage recording.