Your employer sponsors a 403(b) Salary Reduction Arrangement and a 457(b) Deferred Compensation Plan. To participate in both plans, you must complete.Yes, the employer could allow independent contractors to participate in a 457b plan, but they are not required to do so. To the Employee: Use this form to make changes in the amount of your deferral to your ICMA-RC 457 Deferred Compensation Plan. Sample Independent Contractor Agreement. Contractor has a Severance from Employment when the contract(s) under which the Independent. What forms must I complete to participate in DROP? You must complete Form DP-ELE, Notice of Election to Participate in the DROP and.