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State licensing after the program, trade by trade
Finishing the program is not the same as being allowed to work. Which trades require a state license or certification, who issues it, and where to verify a school is approved.
Trades licensed by the state
Electricians and plumbers are licensed by a state board (or in some states by cities), usually after an apprenticeship and an exam. Cosmetologists, barbers, estheticians, nail technicians and massage therapists are licensed by a state board after a program of state-set hours and a board exam. LPNs and dental hygienists are licensed after a state-approved program and a national exam. HVAC technicians need the federal EPA Section 608 certification to handle refrigerants, plus a state or local license in many states. Commercial drivers need the state CDL, with entry-level training from a federally registered provider.
Trades certified by industry, not the state
Welders certify by process and position through the American Welding Society or an employer's own tests. Automotive and diesel technicians certify through ASE. Aircraft mechanics hold the FAA Airframe and Powerplant certificate. Medical assistants, phlebotomists, pharmacy technicians and surgical technologists certify through national bodies; a growing number of states require the certification to work. Radiologic technologists hold the ARRT registry and, in most states, a state license too.
Who licenses the school itself
Separately from student licensing, most states license or authorize private career schools through a dedicated agency: the Bureau for Private Postsecondary Education in California, the Commission for Independent Education in Florida, the Texas Workforce Commission's Career Schools and Colleges unit, the Bureau of Proprietary School Supervision in New York, and their counterparts elsewhere. Our state licensing map lists the agency for every state with a link. Beauty and barber schools are usually approved by the state cosmetology or barber board instead.
How to verify before you enroll
Three checks: the school's accreditation or state license (each campus profile on this site names the accreditor and links to the federal record, and lists any sanctions in the last three years); the specific program's approval for the license you need (ask which exam graduates sit and the pass rate); and whether the program is on your state's Eligible Training Provider List if you plan to use a WIOA voucher.
Moving states
Most trade licenses do not transfer automatically. Cosmetology and barbering have reciprocity between many states but not all; electrical and plumbing licenses vary widely; nursing has a multistate compact for LPNs and RNs in participating states. If you may move, check the destination state's board before choosing a program.
Related
Pay figures are U.S. Bureau of Labor Statistics medians (May 2025); program costs, debt and completion are U.S. Department of Education College Scorecard figures. Licensing rules change; verify with your state board before enrolling.