Minors aged 15 days to 18 years employed in the entertainment industry must have a permit to work, and employers must have a permit to employ. Almost all minors under the age of 18 are subject to California's child labor protections.A: Any student under the age of 18 who has not graduated from high school must have a work permit on file. Q: Can I get a work permit at my high school? Work permits are mandatory in California for most minors under 18 years of age. Section 13.0613 of the San Bernardino County Code is amended, to read: 13.0613. Salaries and Working Conditions of the Exempt Group. Apply to Registered Behavior Technician, Receptionist, Tutor and more! The U.S. Department of Labor's Wage and Hour Division (WHD) administers and enforces the federal child labor laws. Please fill out the form below and one of our attorneys will contact you.