Learn more about your retirement plan and what it offers. Download any State of Illinois Deferred Compensation Plan form now using Acrobat Reader.These forms allow data to be typed into the form and saved. 1.12. "Deferred Compensation" means as to a Participant the amount of Deferral Contributions, Rollover. The City of Chicago offers a Section 457 deferred compensation plan. The City of Chicago has approved an amended and restated City of Chicago Deferred Compensation Plan (the "Plan") effective January 1, 2002. Beneficiary Information. If you would like to confirm or update your beneficiary information, please visit our website at ChicagoDeferredComp.