Whether a minor can work a 12-hour shift depends on age, job type, and state. Under federal law, a 14- or 15-year-old cannot work 12 hours in a day under any circumstances, while a 16- or 17-year-old can, as long as the job is not classified as hazardous. But federal law is only half the answer: many states cap daily hours for older teens at 8, 9, or 10, and in those states a 12-hour shift is illegal no matter what the FLSA allows.
Why 12 Hours Is Never Legal Under 16
The Fair Labor Standards Act sets a hard ceiling for 14- and 15-year-olds. They cannot work more than 3 hours on a school day or more than 8 hours on a non-school day, with weekly caps of 18 hours during a school week and 40 hours when school is out. Hours must fall between 7 a.m. and 7 p.m., though the evening cutoff moves to 9 p.m. from June 1 through Labor Day.1eCFR. 29 CFR 570.352Youth.gov. Rules and Regulations for Youth Employment
Because 8 hours is the absolute daily maximum, no parental consent, employer arrangement, or state variation makes a 12-hour shift possible for this age group. The rule is the same in every state.
Federal Rules at 16 and 17
The FLSA loosens substantially at 16. Workers who are 16 or 17 may be employed for unlimited hours in any occupation the Secretary of Labor has not declared hazardous.3U.S. Department of Labor. Fact Sheet #43: Child Labor Provisions of the Fair Labor Standards Act for Nonagricultural Occupations There is no federal cap on daily hours, no weekly maximum, and no time-of-day restriction. On federal law alone, a 12-hour shift is legal at this age.
The job itself has to be eligible, though. The Department of Labor has designated 17 categories of non-agricultural work as too dangerous for anyone under 18. These include driving a motor vehicle, roofing, excavation, demolition, mining, logging, work with explosives or radioactive materials, and operating many power-driven machines such as forklifts, meat slicers, and woodworking or metalworking equipment.4U.S. Department of Labor. FLSA – Child Labor Rules A few of these categories carry narrow exemptions for registered apprentices or student-learners; most are flat bans. If the work falls under a hazardous occupation order, the minor cannot do the job at all, so shift length never comes up.
State Caps That Override the Federal Allowance
Where a state protects minors more strictly than the FLSA, the state rule controls.5National Institute of Standards and Technology. Understanding Federal and State Child Labor Laws Many states have decided unlimited hours for older teens go too far and set their own daily and weekly limits.
According to the Department of Labor’s compilation of state standards, California and New York cap daily work at 8 hours for 16- and 17-year-olds on non-school days. Pennsylvania and Michigan allow up to 10 hours per day. Others set the ceiling at 9 hours, and many add weekly maximums of 40 to 48 hours.6U.S. Department of Labor. Selected State Child Labor Standards Affecting Minors Under 18 In any of these states, a 12-hour shift for a minor violates state law even though it satisfies federal law.
Some states mirror the federal approach and impose no daily cap on 16- and 17-year-olds. The only way to know is to check the specific state’s Department of Labor site or the DOL’s state comparison table before scheduling the shift.
School Days vs Non-School Days
Many state limits for 16- and 17-year-olds split by school schedule. A state that allows 10 hours on a non-school day may drop that to 4 to 8 hours on a school day or school night. The relevant calendar is the school district where the minor lives, not where the employer operates. Even a state that would allow a 12-hour shift on a Saturday in July may prohibit it on a Tuesday in October.
Work Permits Come First
Federal law does not require minors to hold work permits or employment certificates.3U.S. Department of Labor. Fact Sheet #43: Child Labor Provisions of the Fair Labor Standards Act for Nonagricultural Occupations Most states do. Roughly 40 states and territories require some form of employment certificate, with the covered age running from under 16 to under 18 depending on the jurisdiction.7U.S. Department of Labor. Employment/Age Certificate Certificates are usually issued by the minor’s school district or state labor department and can specify the employer, the type of work, and permitted hours. Without the required certificate, the shift is unlawful even if every hour rule is met.
Breaks During a Long Shift
Federal law does not require employers to provide meal or rest breaks to any employee, including minors.8U.S. Department of Labor. Breaks and Meal Periods States fill this gap, and they do it more aggressively for young workers. Rules vary widely: some require a 30-minute meal break after 5 hours; others mandate a 10-minute rest break every few hours. In any state where a 12-hour shift is legal for a 16- or 17-year-old, state break rules will shape how those 12 hours are structured, and the labor agency’s minor-break rules are worth checking alongside the hour caps.
Overtime Pay
A 12-hour shift can easily push a worker past 40 hours in a week. Minors are covered by the same overtime rule as adults: any hours over 40 in a workweek must be paid at time-and-a-half, and neither the employer nor the worker can waive that.9U.S. Department of Labor. Fact Sheet #23: Overtime Pay Requirements of the FLSA
Narrow Exemptions Where Long Days May Be Legal
A few categories of work sit outside the standard child labor framework:
- Family business: children of any age can work for a business entirely owned by their parents, except in manufacturing or hazardous occupations.3U.S. Department of Labor. Fact Sheet #43: Child Labor Provisions of the Fair Labor Standards Act for Nonagricultural Occupations
- Newspaper delivery to consumers and acting in film or theater are specifically exempt from FLSA child labor provisions.3U.S. Department of Labor. Fact Sheet #43: Child Labor Provisions of the Fair Labor Standards Act for Nonagricultural Occupations
- Agriculture runs on separate rules. Children 12 and 13 can work outside school hours in non-hazardous farm jobs with parental consent or on the same farm as a parent, with no federal daily cap beyond the outside-school-hours requirement.10U.S. Department of Labor. FLSA – Child Labor Rules
A 12-hour day on a family farm or in a parent-owned business may be legal where the same shift in a retail or restaurant job would not be. State law can still add restrictions.
Employer Penalties
The Department of Labor’s civil money penalty for a child labor violation currently reaches $16,035 per employee per violation. When a violation causes serious injury or death, the maximum climbs to $72,876, and doubles to $145,752 if the violation was willful or repeated.11U.S. Department of Labor. Civil Money Penalty Inflation Adjustments A willful violation can also draw a criminal fine of up to $10,000.12Office of the Law Revision Counsel. 29 USC 216 – Penalties States commonly stack their own fines on top. Employers who assume the federal ceiling controls, without checking state hour caps, are the ones who end up paying.