If you are 18 and still in high school, you almost certainly do not need a work permit to take a job. Federal labor law treats 18 as the cutoff between minor and adult workers, and most states built their own child labor rules around that same age. A small number of states tie the requirement to school enrollment rather than age alone, so the answer depends on where you live, but for the majority of 18-year-old students the permit question is already settled.
Why 18 Usually Ends the Requirement
The Fair Labor Standards Act prohibits “oppressive child labor,” and that term only reaches workers under 18.1Office of the Law Revision Counsel. 29 U.S. Code 212 – Child Labor Provisions Once you turn 18, federal law considers you an adult worker with no restrictions on the types of jobs you can hold, the hours you can work, or the need for any employment certificate.2U.S. Department of Labor. Handy Reference Guide to the Fair Labor Standards Act Graduation status does not enter the federal analysis. Whether you are a senior, a fifth-year student, or already done with classes, the federal rule is the same.
Most states mirror that cutoff. The U.S. Department of Labor keeps a state-by-state table of employment certificate practices, and the vast majority of states list “Under 18” as the age range in which a certificate is mandated.3U.S. Department of Labor. Employment/Age Certificate If your state is one of those, being 18 is enough on its own. You do not need to visit the guidance office, and an employer who asks for working papers is asking for something the law no longer requires.
The States Where Enrollment Can Still Matter
A smaller group of states either link the permit requirement to school enrollment rather than a hard age cutoff, or continue issuing certificates as a matter of practice even after 18. The DOL table flags those distinctions with codes showing whether a certificate is legally mandated or merely issued on request.3U.S. Department of Labor. Employment/Age Certificate Some state rules specify “under 18 for minors enrolled in school,” phrasing that technically follows enrollment rather than age alone.
The most reliable way to know where your state lands is to check that DOL table or ask your school’s guidance office directly. If your state does require a permit for enrolled students regardless of age, the legal consequence of skipping it usually falls on the employer, not on you. That still matters in practice, because an employer who realizes the gap after hiring may pause your start date or ask you to complete the paperwork before you can keep working.
How To Get a Permit If Your State Still Requires One
Where a permit is required, the process runs through your school and is not complicated:
- Ask your school’s guidance or main office for an employment permit application, sometimes called working papers.
- Provide proof of age, such as a birth certificate, passport, or state-issued ID. Some states also require a recent physical exam confirming you are fit to work.
- A school official reviews and signs the application. Parental consent is often required for students under 18; at 18, you likely will not need it.
- Your employer keeps the signed certificate on file at your workplace for as long as you hold the job.
Some school districts add their own conditions on top of the state rule. A district may require a minimum GPA or satisfactory attendance before approving a permit, and it can suspend or revoke a permit if grades slip or absences build up. The usual process gives you notice and a chance to correct the problem before the revocation takes effect.
What Else Changes at 18
The permit question is only one piece of what turns over on your 18th birthday, and it helps to know the rest so you do not assume other restrictions still apply.
The federal hazardous occupation orders, which bar minors from dangerous work involving heavy machinery, mining, roofing, and similar jobs, apply only to workers aged 16 and 17.4eCFR. 29 CFR Part 570 – Child Labor Regulations, Orders and Statements of Interpretation At 18, federal law lets you take any job, hazardous or not.5U.S. Department of Labor. Handy Reference Guide to the Fair Labor Standards Agency There is no general federal restriction at age 21, though alcohol service and a few other industry-specific rules set their own age floors under separate laws.
Federal hour limits also drop away. Workers under 16 face caps on how many hours they can work during school weeks, but those caps end at 16 for non-hazardous work and at 18 for everything. If you are 18 and want to work a 40-hour week while still attending high school, federal law will not stop you. Your state may still have its own rules for enrolled students, so it is worth confirming locally before scheduling long weeks around classes.
The short version: for most 18-year-old high school students, the work permit chapter is closed. Confirm your state on the DOL table if you want certainty, and if a permit is still required where you live, your guidance office can move you through the paperwork in a single visit.