PEA CBA ARTICLE XVI - TEACHER SAFETY
16.3 "A teacher may suspend a student from his/her class for the day of the suspension and the day following for good cause pursuant to California Education Code §48910. He/she shall report the suspension to his/her principal and send the student to the principal for appropriate action."
Click Here --> California Ed Code §48910
Click Here --> California Ed Code §48900 (list on violations)