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Ohio Plumber License General FAQ

Individuals must be licensed to perform any type of plumbing work without a licensed supervisor.

Local municipalities may require different licensing than the state. Check with your municipality to determine your licensing needs.

State Licenses

  • Plumbing Contractor

Local Municipalities

  • Journeyman
  • Master
Check with your municipality.

Business Law

  • Business Organization
  • Licensing
  • Estimating and Bidding
  • Contracts
  • Project Management
  • Insurance and Bonding
  • Recordkeeping
  • OSHA Safety
  • Personnel Regulations
  • Financial Management
  • Tax Laws
  • Liens

Plumbing Trades

  • Administration, Scope and Intent/Purpose
  • IPC Chapter 2 - Definitions and Symbols
  • Plumbing Math
  • General Regulations
  • Fixtures, Faucets, and Fixture Fittings
  • Water Heaters
  • Water Supply and Distribution
  • Sanitary Drainage
  • Indirect and Special Waste
  • Vents
  • Traps, Interceptors, and Separators
  • Storm Drainage
  • Nonpotable Water Systems
  • Subsurface Landscape Irrigation Systems
  • Appendix E
  • Isometrics
  • Private Sewage Systems
  • International Fuel Gas Code
  • Hands-On Practical Application
  • Practice Tests

Bonus Materials

  • Reading and Understanding the PSI Bulletin
  • Effective Study Techniques

Ohio Department of Commerce
Division of Industrial Compliance
Ohio Construction Industry Licensing Board (OCILB)
6606 Tussing Road
P.O. Box 4009
Reynoldsburg, OH 43068-9009
Phone (614) 644-3493

  • Information Last Updated: 02/2020
  • Did you find incorrect information? Email Us
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