Children ages 14 and 15 cannot work before 7 a.m. Work certificates are not required for 16 and 17yearolds.14-15 year olds may work up to 8 hours per day, 40 hours per week, unless attending summer school. From June 1 - Labor Day may work between 7am and 9pm. We want to equip you with all the necessary resources you will need to ensure compliance with federal and state child labor laws. During normal school sessions, minors ages 14 and 15 may work a maximum of three hours per day, up to 18 hours per week. I am currently 15 years old (16 in May) and my friend and I (same age) want to start a pressure washing business in the summer. Teens ages 14 and 15 cannot: work before 7 am or after 9 pm; work more than eight hours in a 24-hour period; or work more than 40 hours a week. To the contrary, minors who are 14 years old or 15 years old cannot work more than 8 hours in a 24hour period except in agriculture. A minor aged 14 or 15 years old can work up to 40 hours a week during Spring, Winter, and Summer Break.