The Illinois Certificate of Depository Receipt (CDR) is an official document issued by the Treasurer of the State of Illinois. It serves as a receipt for the payment of taxes or other fees to the state, and is issued in the form of a check or money order. The CDR can be used to pay for a variety of taxes, including sales and use tax, income tax, property tax, and inheritance tax. There are two types of Cars: a general CDR, which is issued when a taxpayer pays taxes to the state, and a special CDR, which is issued when a taxpayer pays taxes to a local jurisdiction. Both types of Cars provide a receipt for the payment of taxes, and can be used to verify the payment of taxes.