The County offers a voluntary Deferred Compensation Plan in accordance with Section 457 of the Internal Revenue Code. The Contra Costa County Deferred Compensation Plan is a governmental.Ohio Deferred Compensation is a supplemental 457(b) retirement plan for all Ohio public employees. It provides participants with educational tools. If you decide to request a refund, you must fill out and return a Distribution Election Form (Form 207) to CCCERA. Per the IRS, Ohio DC participants should file their taxes using an updated Payer's TIN. Identified employees and Authority members fill out the Annual Statement form and return it to the General Manager within the time frame requested. 7.