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North Carolina Plumber License General FAQ

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

  • P-I (Plumbing-Class I) Contractor: Potable water and drain/waste/vent piping systems in any building (residential, commercial, industrial).
  • P-II (Plumbing-Class II) Contractor: Potable water and drain/waste/vent piping systems in single-family detached dwellings only.
  • RLP (Restricted Limited Plumbing) Contractor: Exterior building sewer piping, exterior water service piping 2" or less, exterior backflow preventers on 2" or less piping, water filtration systems.
  • SLGT-P (State & Local Government Technician – Plumbing): Potable water and drain/waste/vent piping systems. Must be an employee of a state or local government. This is not a contracting license.
  1. Obtain a copy of the Board's Laws and Rules book.
  2. Meet state requirements
    • You must have 2 years or a total of 4,000 hours of experience to take the exams. At least 2,000 of these hours must consist of hands-on work in installation, layout, and design.
  3. Complete an examination application & pay the $100 exam fee
    • Include a criminal background report from CastleBranch.com
  4. Pass the state exams - study with online exam prep!

Business Law Exam

  • Estimating and Bidding
  • Business Organization
  • Risk Management
  • Contracts
  • Project Management
  • Employee Management
  • Financial management
  • Taxes
  • Liens
  • Recordkeeping
  • OSHA Safety
  • Licensing

Plumbing Exam

  • Administration, Scope, Intent/Purpose
  • 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
  • Isometric Theory
  • Hands-on-Practical Application
  • International Fuel Gas Code
  • Copper Projects
  • Practice Tests

Bonus Materials

  • An overview on reading and understanding the ProV Bulletin
  • A list of books you should have during the exam
  • A guide to studying effectively

North Carolina State Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors
1109 Dresser Court
Raleigh, NC 27609
919-875-3612

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