Cal. Ed. Code § 87746
If the services of any contract employee are terminated, or if such an employee is dismissed, because of a reduction in the attendance of students or the discontinuance of a particular kind of service, and the employee is reemployed within a period of 39 months from the last day of the college year within which his or her service was so terminated, or within 39 months after the cessation of hostilities, if the reduction in attendance or discontinuance of service was due to war conditions, the period of the employee's absence shall not count as a part of the service required as a condition precedent to the classification of the employee as a regular employee of the district, but the absence shall not be construed as a break in the continuity of the service of the employee.
Every contract employee who has been reemployed as indicated in this section shall have all of the rights enumerated in Section 87463 and Sections 87743 to 87762, inclusive, for regular employees, except the right of reappointment, subject only to the prior rights of regular employees.
Ca. Educ. Code § 87746