Cal. Educ. Code § 8483.4

The administrator of every program established pursuant to this article shall establish minimum qualifications for each staff position that, at a minimum, ensure that all staff members who directly supervise pupils meet the minimum qualifications for an instructional aide, pursuant to the policies of the school district. Selection of the program site supervisors shall be subject to the approval of the schoolsite principal. The administrator shall also ensure that the program maintains a pupil-to-staff member ratio of no more than 20 to 1. All program staff and volunteers shall be subject to the health screening and fingerprint clearance requirements in current law and district policy for school personnel and volunteers in the school district.