North Carolina — plumbing code & licensing
Verified
The code
| Code family | NC State Building Code: Plumbing Code (IPC-based) |
| Edition in force | 2018 NC Plumbing Code (2015 IPC base) |
| Effective date | 2019-01-01 |
| Adopted by | North Carolina Building Code Council (approved by Rules Review Commission) |
| Adoption source | https://www.ncosfm.gov/codes/codes-current-and-past |
| State amendments | Amendments ride in the adoption document itself — https://www.ncosfm.gov/codes/codes-current-and-past |
Licensing
| Model | state individual contractor licensing |
| Authority | North Carolina State Board of Examiners of Plumbing, Heating, and Fire Sprinkler Contractors |
| Licensing source | https://nclicensing.org/applicant-information/ |
| License classes | https://nclicensing.org/wp-content/uploads/2026/05/License-Definitions-Contractor-2026-06.pdf |
Permits & inspections
Permit required for work described in the technical codes unless specifically exempted (2018 NC Administrative Code Sec. 106.1); no person may commence installation, extension or general repair of a plumbing system without first securing each required permit from the Inspection Department with jurisdiction (Sec. 204.3.1).
How this record was verified
| Adoption | Verified |
| Amendments | Verified |
| Licensing | Verified |
| Permits & inspections | Verified |
Working notes
2024 NC Plumbing Code adopted but NOT in force on 2026-10-31: OSFM letter (Mar 31, 2025) and board code-update notice (Jun 1, 2026) confirm its effective date is not yet set (earliest possible May 1, 2027) pending State Fire Marshal certification of publication/distribution and full constitution of the Residential Code Council; the 2024 code may be used as an alternate method at the owner's request (2018 NC Administrative Code Sec. 102.5). License classes: P-I Plumbing-Class I (potable water and DWV in any building); P-II Plumbing-Class II (single-family detached dwellings only); RLP Restricted Limited Plumbing (exterior building sewer, exterior water service 2 in. or less, exterior backflow preventers on 2 in. or less, water filtration). Board site also notes no reciprocity agreements.
Reference only. Compiled from the cited official sources as of the date shown; adoptions and rules change. Confirm with the authority having jurisdiction before designing or permitting work.