To define the City of Riverside Deferred Compensation Plan as arranged under Section 457 of the. The County of Riverside offers a voluntary Deferred Compensation Plan to assist employees in meeting their financial goals in retirement.Future benefits from the 457(b) Plan will reflect the amount of a participant's voluntary salary deferral contributions plus earnings. Vesting is immediate. Deferred Compensation Plan. Revised November 15, 2018. Complete the appropriate boxes below, with the amount you authorize to have deducted each pay period. Sample Model Plan Filing Package. An example on how to fill out the model plan document.