NC Special Restricted Plumbing and Heating (SP-PH) North Carolina overhauled SP-PH requirements in 2023, tightening standards around backflow prevention and cross-connection control in residential heating systems. The exam now emphasizes compliance with updated state mechanical codes and EPA water quality regulations. Applicants must grasp modern radiant heating installations and condensing boiler troubleshooting—skills that weren’t previously weighted as heavily in older test versions.
| Exam Name | NC Special Restricted Plumbing and Heating |
| Exam Code | SP-PH |
| Format | PDF & Practice Test Engine |
| Target Year | 2026 Updated |
| Features | 100% Verified Q&As |
