Illinois Policy on Establishing and Posting Speed Limits on the State Highway System

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Resource Abstract:

The Illinois Vehicle Code does not require local agencies to obtain department approval for speed zones on roads under their respective jurisdictions. While the procedures contained in this policy may be used for altering speed limits on any public highway, use of such procedures by local agencies is not required by statute. If a local agency wishes to ask a district for review of a speed zone, the district may, of course, do so. However, when responding back to the agency, a statement should be included indicating that the comments are not to be considered as either approval or disapproval. Local Agencies should refer to Section 11-604 of the Illinois Vehicle Code for additional information and specific regulations regarding the alteration of speed limits on local roads.