Cal. Gov. Code § 20356
Whenever in this part the rights of a local member, because of membership in another retirement system, are conditioned upon employment within six months of termination of membership in this system or another retirement system, the period shall be one year rather than six months if the local member was an elective officer and becomes a member of another retirement system upon commencement of service in another elective office on and after January 1, 1977.
This section shall not apply unless the other employer in a reciprocal system elected a similar provision, nor shall it apply to any contracting agency nor to the employees of any contracting agency unless that agency elected to be subject to the provisions of this section in its contract with the board on or before December 31, 2001.
Ca. Gov. Code § 20356