PROP TX-TAX BILLS House SponsorsRep. Harry Osterman-Sidney H. Mathias-Lou Lang 1/11/2011HouseSession Sine Die 35 ILCS 200/20-15 Amends the Property Tax Code. Provides that in Cook County, tax bills must include, for each taxing district, a statement of the increase or decrease of the tax imposed on the taxpayer by that taxing district from the previous taxable year. Effective immediately. 2/20/2009HouseFiled with the Clerk by Rep. Harry Osterman 2/20/2009HouseFirst Reading 2/20/2009HouseReferred to Rules Committee 2/25/2009HouseAssigned to Revenue & Finance Committee 2/26/2009HouseAdded Chief Co-Sponsor Rep. Sidney H. Mathias 3/5/2009HouseAdded Chief Co-Sponsor Rep. Lou Lang 3/13/2009HouseRule 19(a) / Re-referred to Rules Committee 1/11/2011HouseSession Sine Die