It is illegal to employ a child under 14 except under specific circumstances. One of the principal exemptions in the statute allows the Texas Workforce.Commission (Commission) to adopt rules which authorize the employment of children. Both Federal and State laws govern the employment of young workers and when both are applicable, the law with the stricter standard must be obeyed. South Carolina Child Labor Regulations Summary. Explore U.S. state minor working hours to ensure legal compliance and protect young workers. Summary Minor labor laws are in place to provide safeguards that prioritize the health, wellbeing, and education of young employees. No federal laws restrict how many hours 16- to 18-year-olds can work. However, most states have their own laws regarding the number of hours a child can work. Restricts the hours and employment options for children ages 1415; Prohibits minors ages 1617 from work determined to be too dangerous.