Almost all minors under the age of 18 are subject to California's child labor protections. MINORS AGES 16, 17 and Older.Minors ages 16 and older are exempt from the hour and scheduling restrictions. The difference is the maximum work hours for these minors. Thus, 9 to16 year-olds who attend regular school may only work up to 3 hours on a schoolday. 16 and 17yearolds may work up to 8 hours a day, up to 48 hours a week, and between a.m. 16 and 17 year olds that are enrolled in school may not work more than 6 consecutive days or 30 hours per week during the school calendar week. Section 13.0613 of the San Bernardino County Code is amended, to read: 13.0613. Must be 16 years of age. 16 and 17: Can work up to 8 hours on school days, 9 hours on nonschool days, and 30 hours per school week.