Chicago, IL, window tint?

Does anyone know what is tint law in Chicago, IL?
Is it same in other cities in IL; like Lisle, Naperville, Aurora, and Warrenville?
Is this Police Ticketing Video still going on or is everything resolved?
(http://www.nbcchicago.com/news/local/chicago-home-rule-tint-tickets-92929004.html)
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