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Licensing Window Information: Please be advised that our licensing windows are now located on the first floor. The hours of operation are as follows: Thursdays: 8:00 a.m. to 12:00 p.m.  Mondays, Tuesdays, Wednesdays, and Fridays: 8:00 a.m. to 4:00 p.m. We accept payments via check, money order, and most major credit cards. We do not accept cash under any circumstances.

Consumer Resources

At the Oklahoma Department of Labor, we are committed to providing you with the tools and information you need to navigate the complexities of workplace rights, safety, and regulations. Explore our comprehensive resources and as always, feel free to contact our main number at (405) 521-6100 for assistance finding what you're looking for.

Boiler & Pressure Vessel Certification and Compliance Information

Use this resource to verify active boilers, hot water heaters, and certified individuals and companies authorized to install, service, and repair these systems statewide.

License & Inspection Verification

Check licensed contractors, inspectors, mechanics, and apprentices. You can also verify currently registered elevators and view inspection compliance reports.

Additional Resources


  • AG Website
  • (405)521-3441
  • (405)521-3921
  • (918)581-2885

  • USDOL Website
  • (405)231-4158 Oklahoma City, OK
  • (580)436-4646 Ada, OK
  • (918)581-6303 Tulsa, OK
  • (866)487-2365 Toll Free

Last Modified on Jul 28, 2025