California Code, Government Code - GOV § 31646.2

(a) The board may grant a member who is subject to a temporary mandatory furlough the same service credit and compensation earnable or pensionable compensation to which the member would have been entitled in the absence of the temporary mandatory furlough. The board may condition this grant on the receipt of additional member or employer contributions, or both as applicable, that the board determines are necessary to fund any benefits granted under this section on an actuarially sound basis.

(b) For the purposes of this section, “temporary mandatory furlough” means the time during which a member is directed to be absent from work without pay for up to one quarter of the member's normal working hours, provided that these reduced working hours shall not be in place for longer than two years.