For more information on California minimum wage. California employers are not required to pay their workers holiday pay when they close for business on official holidays.California overtime (OT) laws require non-exempt employees to earn one-and-a-half times their regular rate of pay when they work extra hours. Trying to understand California labor law can be overwhelming, but as a member of CalChamber, you can find the information you need in one convenient location. Children ages 12 and 13 can only work on days when there is no school. The law allows them to work up to eight hours a day and no more than 40 hours a week. A new work permit application must be filled out for each new job. The documents on List A show both identity and employment authorization. Work may be performed without a permit. Voluntariness of employment requirements do not apply.