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.The Contra Costa County Employees' Retirement Association ("CCCERA") invites organizations to submit proposals on providing IRC 457(b) Deferred. This catalog serves as a contract between you, the student, and Contra Costa College. That contract is valid as long as you are continuously enrolled. My relationship with the Contra Costa Community College District. (District) began in 1989. For more information on loans, contact the. Louisiana Deferred Compensation Plan at (800) 937-7604.