The Special Restricted Plumbing & Heating license is an open-book exam. The skill that passes it isn't memorizing answers — it's finding them fast in the Code book. We train exactly that.
Start Practicing → Read the Study Plan↑ Trade License Prep › NC SP-PH
| Questions | 40 multiple choice |
|---|---|
| Time limit | 3 hours (~4.5 min per question) |
| Passing score | 75% — 30 of 40 correct |
| Format | Open book |
| Primary reference | 2020 National Electrical Code (NEC) |
| Business / law reference | NASCLA Contractors Guide to Business Law & Project Mgmt, NC Electrical 13th ed. |
| Administered by | PSI Services — (855) 746-8173 |
| Fees | $90 exam + $75 license |
| Experience | 2 years (1 year primary) in a plumbing / heating / AC business |
| Retakes | Max 2 per year; waiting period based on score |
Always confirm current details with the NC Board of Examiners of Electrical Contractors and the PSI exam handbook when you register.
Work through the Study Guide — nine exam topics, each pointing to the NEC articles and tables they come from.
Use the NEC Navigation guide and printable tab set so you can flip to any article in seconds.
Run the Practice Exam or drill Flashcards. Every answer cites the article that proves it — turn each miss into a faster lookup.
Jump into the practice engine and start building your lookup speed.
Start the Practice Exam →The complete week-by-week plan from "no license" to passing score.
Experience, application, PSI scheduling, and passing — step by step.
Every fee broken down, plus the realistic total to get licensed.
What 40 open-book questions in 3 hours really feels like.
Which NC restricted electrical license matches your work.