Cal. Government Code § 19996.21

(a) It is the policy of the state that to the extent feasible, reduced worktime be made available to employees who are unable, or who do not desire, to work standard working hours on a full-time basis. Further, it is the intent of the Legislature that nothing in this act shall be used to reduce the number of full-time equivalency positions authorized to any department. (b) If the department determines that a reduction in the personnel of departments or agencies of state government equivalent to 1 percent or more or full-time equivalent jobs is contemplated in a single fiscal year, the director may conduct or may direct each affected department or agency to conduct a survey of either all permanent full-time employees or those permanent full-time employees most likely to be affected by the personnel reduction. The purpose of the survey shall be to determine the extent of the desire of employees to participate in voluntary reduced worktime. The survey shall contain information clearly informing employees of potential worktime options, the effect reduced worktime would have on benefits, and the right to return to full-time work as specified in Section 19996.24.