California Code, Education Code - EDC § 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.

(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.