Pennsylvania — electrical code & licensing
Verified
The code
| Edition in force | 2020 NEC (NFPA 70-20), adopted by reference through the 2021 IBC/IRC under the PA Uniform Construction Code |
| Edition structure | One statewide edition |
| Effective date | 2026-01-01 |
| Date as recorded | 2026-01-01 |
| Adopted by | Pennsylvania Department of Labor & Industry (UCC), under the Pennsylvania Construction Code Act (Act 45 of 1999) |
| Adoption source | https://www.pa.gov/agencies/dli/programs-services/labor-management-relations/bureau-of-occupational-and-industrial-safety/uniform-construction-code-home |
| State amendments | State amendments at their own official document — https://www.pacodeandbulletin.gov/secure/pabulletin/data/vol55/55-45/55_45_rr.pdf |
Licensing
| Model | No state electrician or electrical-contractor license; licensing is municipal/local only. Home-improvement contractors must register with the Attorney General (registration, not a trade license) |
| Authority | None at state level for electricians (PA Department of Labor & Industry administers the UCC, not trade licensing) |
| Licensing source | https://www.pa.gov/agencies/dli/programs-services/labor-management-relations/bureau-of-occupational-and-industrial-safety/uniform-construction-code-home/contractor-licensing |
Permits & inspections
Over 90% of PA municipalities administer and enforce the UCC locally; where a municipality has opted out, the Department is responsible for commercial code enforcement (plan review, permits, inspections); the Department also has sole jurisdiction over elevators and state-owned buildings.
Things to watch for
- Licensing runs locally here. Confirm the municipality's or county's requirements before pulling a permit — the state record does not settle them.
How this record was verified
| Adoption | Verified |
| Amendments | Verified |
| Licensing | Verified |
| Permits & inspections | Verified |
Working notes
2021 I-Code UCC adoption and 2026-01-01 effective date verified on DLI and PA Bulletin (34 Pa. Code 403.21, Annex A) sources. The NEC-2020 label is verified via the 2021 IBC Chapter 35 referenced-standard chain and the explicit '2021 International Residential Code / 2020 National Electrical Code' pairing in the companion DCED adoption of the same RAC report; 403.21 itself adopts by IBC reference without spelling out NFPA 70-20. Prior cycle: 2018 I-Codes / NEC 2017, effective 2022-02-14. E-WIRING-READINESS (2026-10-26): license_classes_url stays blank as a VERIFIED ABSENCE: the DLI UCC contractor-licensing page (licensing_source_url), read firsthand this pass, states the Commonwealth has no licensure or certification requirements for most construction contractors and that electrical licensure/certification requirements exist only where a municipality has established them (562 municipalities have local requirements). There are no state license classes to link. Row VERIFIED.
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.