â–¡ I am a new participant in the County of Riverside 457 Deferred Compensation Plan Note: Only use this form if you have established an account in the Plan. The City provides all benefited employees the opportunity to participate in a Section 457b Deferred Compensation plan.Sample Independent Contractor Agreement. Future benefits from the 457(b) Plan will reflect the amount of a participant's voluntary salary deferral contributions plus earnings. Vesting is immediate. Yes, the employer could allow independent contractors to participate in a 457b plan, but they are not required to do so. All new employees in the Fire Unit shall be regarded as electing to receive holiday compensation in the form of time off with pay.