Child Labor Law Regulates the employment of workers under 16 years of age. The law protects children by:Working hours are limited for children under 16. Generally, employers cannot let children work before a.m. However, employers of minors under age 18 must obtain and keep on file proof of the minor's age. If you are 14 or 15, a work permit is required for you to work in Illinois. However, employers of any minor must obtain and keep on record proof of the child's age. Generally, employers are not allowed to hire children aged 13 and younger. The bureau investigates and litigates cases involving serious or persistent wage law violations or other significant employment practices. Employers of minors must post a schedule stating the hours of work and time of the lunch period.