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Administrative Code for Illinois
Title 92: Transportation – Chapter I: Department of Transportation
Subchapter f: Highways
 Part 522 Control of Outdoor Advertising Adjacent to Primary and Interstate Highways

131. Control of outdoor advertising
(Bonus Agreement)

Illinois Controlled Route Map
(Interactive Map Showing Areas Controlled and Requiring a State Permit)

Illinois Department of Transportation (IDOT)
(Off Premise Sign Program and Management) 

Outdoor Advertising Control Act of 1971
(IL State Statute – 225 ILCS 440/Highway Advertising Control Act)

Outdoor Advertising Control Act of 1971 – Printable PDF
(Illinois state statute)

Outdoor Advertising Association of America (OAAA)
(National Association)

23 U.S. Code § 131 – Control of outdoor advertising
(Highway Beautification Act of 1965)