California Code, Labor Code - LAB § 1295.5

(a) Notwithstanding Section 1391 of this code or Section 49116 of the Education Code, minors 14 years of age and older may be employed during the hours permitted by subdivision (b) to perform sports-attending services in professional baseball as enumerated in subsection (b) of Section 570.35 of Title 29 of the Code of Federal Regulations.  No employer may employ a minor 14 or 15 years of age to perform sports-attending services in professional baseball without the prior written approval of either the school district of the school in which the minor is enrolled or the county board of education of the county in which that school district is located.

(b) Any minor 14 or 15 years of age who performs sports-attending services in professional baseball pursuant to subdivision (a) may be employed outside of school hours until 12:30 a.m. during any evening preceding a nonschoolday and until 10 p.m. during any evening preceding a schoolday.  No employer may employ a minor 14 or 15 years of age to perform sports-attending services in professional baseball pursuant to subdivision (a) for more than five hours in any schoolday, for more than 18 hours in any week while school is in session, for more than eight hours in any nonschoolday, or for more than 40 hours in any week that school is not in session.  An employer may employ a minor 16 or 17 years of age outside of school hours to perform sports-attending services in professional baseball pursuant to subdivision (a) for up to five hours in any schoolday.

(c) The school authority issuing the permit to the minor to perform sports-attending services in professional baseball shall both (1) provide the local office of the Division of Labor Standards Enforcement with a copy of the permit within five business days after the date the permit is issued and (2) monitor the academic achievement of the minor to ensure that the educational progress of the minor is being maintained or improves during the period of employment.