Cal. Education Code § 49024

(a) Prior to assuming a paid or volunteer position to work with pupils in a pupil activity program sponsored by a school district, all noncertificated candidates shall obtain an Activity Supervisor Clearance Certificate from the Commission on Teacher Credentialing pursuant to subdivision (f) of Section 44258.7. (b) A pupil activity program sponsored by a school district includes, but is not limited to, scholastic programs, interscholastic programs, and extracurricular activities sponsored by a school district or school booster club, including, but not limited to, cheer team, drill team, dance team, and marching band. (c) Volunteer supervisors for breakfast, lunch, or other nutritional periods pursuant to Sections 44814 and 44815, and nonteaching volunteer aides, as defined in Section 35021, under the immediate supervision and direction of certificated personnel of the district, shall not be required to obtain an Activity Supervisor Clearance Certificate. For purposes of this section, a nonteaching volunteer aide includes a parent volunteering in a classroom or on a field trip or a community member providing noninstructional services. (d) Candidates may be issued a temporary certificate in accordance with Sections 44332 and 44332.5 while the application is being processed. (e) This section does not apply to a candidate who is required by the school district to clear a Department of Justice and Federal Bureau of Investigation criminal background check prior to beginning the paid or volunteer activities described in subdivision (a). (f) This section shall become operative on July 1, 2010.