The County offers a voluntary Deferred Compensation Plan in accordance with Section 457 of the Internal Revenue Code. Contra Costa County (the "County'') maintains this Contra Costa County Deferred.Currently, CCCERA offers a deferred compensation plan in accordance with Section. Tax deferred 401(a), 401(k), 403(b), and 457 (DEFERRED. Using the Benefits Summary Page. To review your benefits summary information,. 1. Deferred Compensation: The District offers two optional deferred compensation plans. 6.14.15 Please attach your filled out New York State Deferred Compensation Plan Vendor Responsibility. Take the first step toward a more rewarding future. Meet your plan representatives.