• Anyone who engages in or offers to engage in the business of plumbing must be licensed by the State of North Carolina.
• Applicants must submit a completed application to get pre-approval from the State Licensing Board to take the exam.
• You are required to have a total of 4000 hours to sit for any single plumbing examination.  2000 hours may include service or maintenance work but you must have a minimum of 2000 hours hands-on work in installation, layout and design of plumbing systems.

Plumbing is deemed and held to be: the system of pipes, fixtures, apparatus and appurtenances, installed upon the premises, or in a building, to supply water theretoand to convey sewage or other waste therefrom. 

The two classifications for a North Carolina plumbing license are Class I and Class II. 

• A Class I plumbing license is for commercial, residential, industrial and institutional buildings whereas
• A Class II plumbing license is for single family detached residential dwellings only.

• The plumbing exam is open book and has a fee of $100.
• 70% is required to pass.  
• The examination is open  book.
• To schedule your exam, contact PSI at 1-800-733-9267.

These references are allowed to be taken into the examination.  They are available for purchase from our online bookstore or by calling 1-800-952-0910.

• 2009 North Carolina Administration Code
• 2009 North Carolina Fuel Gas Code
• 2009 North Carolina Plumbing Code
• 2002 North Carolina Accessibility Code (Class I license only)

The following reference can be purchased directly from the North Carolina State Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors by calling (919) 875-3612.

• Business and Project Management for Contractors, North Carolina

The following reference may be viewed and printed online free of charge.

• General Statutes Chapter 87, Article 2, 21 North Carolina Administrative Code

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