California Code, Government Code - GOV § 31499.17

(a) General members may, within 180 days of the effective date of this article, elect to transfer to the retirement plan created by this article upon proper application executed by the member and filed with the board.

(b) The retirement benefits of the transferred members are governed and defined by this article.

(c) Transferring members relinquish and waive any and all previously available vested or accrued retirement, survivor, disability and death benefits. All transferring members whose contributions for public service have been refunded to them shall not receive credit for that service.

(d) Any member who selects Retirement Plan 3 upon reentering into county service and who has not received credit as a Plan 3 member for previous county service, may elect to repurchase his or her previous service by redepositing his or her withdrawn contributions, plus interest, from date of termination, and shall then receive credit for that service under the plan status at the time of original employment.

(e) Any member who has elected or transferred to the plan created by this article and who terminates his or her employment and is later reemployed shall not be entitled to change his or her election upon that reemployment, unless a resolution, enacted by the board of supervisors subsequent to the member's election to transfer to the new plan, so provides.

(f) A plan transfer by a member is voluntary and shall be irrevocable, unless the board of supervisors, by resolution, authorizes Retirement Plan 3 members to transfer to a retirement plan authorized under Article 8 (commencing with Section 31670), under the terms and conditions specified in the resolution. The terms may include, but are not limited to, (1) an eligibility provision based on the number of years in county service, or (2) a provision for crediting service in the plan which (A) the member transfers to only for that service rendered after adoption of the resolution or (B) an eligibility provision that, for the purposes of Article 10 (commencing with Section 31720), considers years in county service from the date the member transfers to a new plan unless the prior county service credit is restored, or both. The resolution may establish different service credit conditions for various job classifications or groups, or for various represented bargaining units, different conditions agreed upon by the employer and the employee representative, or both. The board of supervisors may also establish other conditions it deems necessary or desirable.