Plumber’s exam prep

All about becoming a plumber in North Carolina

The North Carolina plumbers license exam has the reputation of being one of the toughest in the nation. To qualify for a license, you must have a minimum of 4000 hours (two years) experience working under a licensed plumbing contractor, then sit for both a trade exam and a Business and Law exam. North Carolina does not have reciprocity with any other state. Therefore, you must sit for the exam even if you’re licensed in another state. However, if you hold a license in another state, the board will likely waive the 4000 hour experience requirement.  Application forms and reference books may be obtained at 

Two Classes of licensing are available. P1 Class I, which enables the license holder to perform plumbing contracting on any edifice, residential or commercial. P1 Class II, limits the license holder to perform work on single family residences only. It is the opinion of this author, that you should select the PI Class I exam, as it is not that much more difficult to pass than the PI Class II which severally limits the work you  will be qualified to bid.

PSI is the testing agency that administers the exam. The exam is open book. Therefore you will need to bring your own reference books as listed on the Boards site. It is most important that you go to PSI’s site at, to learn the rules and restrictions when entering the exam room.

To get an idea of what you’re in for, try this practice NC Plumbing Exam

EMS has been teaching continuing education and plumbers exam prep courses since 1986. In fact, many juristictions use exams that we created. Clicking the button below will take you to our plumbers exam prep course site, where you will learn all you need to pass your North Carolina Plumber’s exam.

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