Cal. Education Code § 45278

(a) Written notices concerning tests, vacancies, transfer opportunities, and other selections of shifts, positions, assignments, classifications, or locations shall be posted at all work locations of employees who may be affected, not later than 15 working days prior to the closing date of filing appropriate applications, together with the normal use of newspapers and bulletins for public notice for open or promotional vacancies. If the subject of those notices affects a probationary or permanent classified employee who will not be reporting at his or her work location during periods when that employee is not normally required to work, including Christmas, Easter, summer recesses, and other paid or unpaid leaves of absences, including vacations, and who has previously requested notification, those notices shall be mailed to the employee. However, the failure of an employee to receive that notice shall not invalidate any procedure, if in fact the notice was placed in the U.S. mail and postage paid. (b) (1) Subdivision (a) does not apply to a school district that publishes and distributes to all work locations examination bulletins at least once each month, provided that records of employee requests for transfer and change of location are maintained and that the names of all candidates for transfer and change of location to a vacancy are certified to the appointing authority along with names of appropriate applicants from employment lists. (2) A school district may publish and distribute pursuant to paragraph (1) by electronic means. (c) The personnel commission shall establish procedures for the maintenance of employee requests for transfer, change of location, change of shift, and notification of forthcoming examinations.