Illuminated billboards in Cook County must comply with the Illinois Highway Advertising Control Act brightness rule of 0.3 foot-candles above ambient measured at 250 feet, plus Cook County Code Ch. 38 environmental standards and Ch. 102 zoning lighting controls limiting glare and trespass onto adjacent properties.
Cook County and Illinois layer multiple lighting standards on billboards. Under 225 ILCS 440 and IDOT rules, digital and externally illuminated billboards visible from regulated highways cannot exceed 0.3 foot-candles above ambient at 250 feet. Operators must install automatic photocell dimming so brightness reduces at night. Cook County Code Ch. 38 nuisance provisions and Ch. 102 zoning add limits on light trespass onto residential parcels and require shielding of external sources. Illuminated signs must direct light onto the face, not skyward. Suburban municipalities frequently impose curfews requiring digital faces to dim or turn off between 11 p.m. and 6 a.m.
Exceeding 0.3 foot-candles, failing to install dimming photocells, or causing light trespass on adjacent residential parcels violates HACA and Cook Code Ch. 38. IDOT and county code enforcement issue notices, daily fines, and may order disconnection.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Des Plaines, IL
Des Plaines City Code 6-2-7(E) applies its dBA limits to vehicles and equipment on the public right of way (excessive at 65 dBA daytime / 50 dBA quiet hours ...
Des Plaines, IL
Des Plaines City Code 6-2-7(D) makes it unlawful to make or continue any sound determined to be excessive. Outside quiet hours, 6-2-7(E)(5) sets the threshol...
Des Plaines, IL
Des Plaines City Code 6-2-7(F) makes it unlawful to operate any sound-production or amplification device whose sound crosses a property line and raises total...
Des Plaines, IL
Des Plaines City Code Section 7-3-8 prohibits parking on designated streets during declared snow removal operations so that plows can clear the roadway; viol...
Des Plaines, IL
Des Plaines requires fences and the full lot to be properly maintained, including portions of a lot where a fence is not on the property line, and limits fen...
Des Plaines, IL
Des Plaines prohibits barbed-wire and electrically charged fences in residential areas; they are allowed only in nonresidential districts where the Zoning Ad...
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