Participants in the Deferred Compensation Plan who separated from County service are requested to submit a Distribution Election form. Future benefits from the 457(b) Plan will reflect the amount of a participant's voluntary salary deferral contributions plus earnings.Vesting is immediate. Free fillable forms: City of Oakland. Non-Federal Agency (CA) Sign up. Welcome. MissionSquare Retirement is pleased that the City of Oakland has selected us as the sole provider for your 457(b) Deferred Compensation Plans. The attached sample Basic Plan Document may be used together with the related Adoption.