Cal. Gov. Code § 19865.1
When an employee uses sick leave, vacation, annual leave, or any combination of these, because of an injury compensable under the Labor Code, and the state is reimbursed by a third person for its damages by reason of such use, there shall be granted, for credit to the employee's sick leave or vacation or annual leave account, sick leave or vacation or annual leave equivalent to the amount so used or proportionately if reimbursement is only in part. If the state does not collect from the third person the full amount of the compensation paid and other damages for which it is liable to the employee and if the amount collected is not itemized so that there may be ascertained the amount collected in reimbursement for the sick leave or vacation or annual leave used, the sick leave or vacation or annual leave to be credited shall be in the same ratio to the sick leave or vacation or annual leave used as the total amount collected bears to the total amount of the state's damages. "Sick leave" or "vacation" or "annual leave" as used in this rule includes sick leave or vacation or annual leave credit used to augment disability indemnity.
Ca. Gov. Code § 19865.1