The short answer
Pennsylvania's state code is based on NEC 2020, the current edition there, in effect since January 1, 2026, but it does not reach every jurisdiction or building type the same way.
- Current edition
- NEC 2020 (current)
- Adoption
- State code, with exceptions by jurisdiction or building type
- In effect since
- January 1, 2026
- Primary source
- www.pacodeandbulletin.gov
Code adoption cycles change. Always confirm the edition and amendments in force with your Authority Having Jurisdiction (AHJ) before permitting work.
How does Pennsylvania adopt the NEC?
Pennsylvania's Uniform Construction Code adopts no NEC edition directly: since 2026-01-01 it adopts the 2021 I-codes (34 Pa. Code § 403.21), which reference NEC 2020, for jurisdictions that have not opted out. The UCC allows municipalities to opt out of state administration entirely and set their own requirements, and there is no statewide electrician trade license. Philadelphia and Pittsburgh, among others, run independent code and licensing programs.
What are Pennsylvania's amendments to the NEC?
The app's record for Pennsylvania lists no individual amendments; the adoption summary above says how the state applies the code.
Who issues electrical permits in Pennsylvania?
Permits/inspections are handled by the municipality or a state-approved third-party agency under the UCC; opted-out municipalities set their own rules entirely.
Who licenses electricians in Pennsylvania?
No statewide electrician license; Philadelphia, Pittsburgh, and other municipalities license and examine independently. Licensing board: Pennsylvania - no statewide electrician license; code administered under the Uniform Construction Code (Dept. of Labor & Industry) where not locally opted out.
Is Pennsylvania moving to a newer NEC edition?
The Uniform Construction Code adopts no NEC edition directly: the 2021 I-codes in force since 2026-01-01 reference NEC 2020 (the 2018 I-codes referenced NEC 2017). Opt-out municipalities administer locally.
Is Pennsylvania on NEC 2026?
No. NEC 2026 is the newest edition; the one current in Pennsylvania is NEC 2020, two editions older. NFPA publishes a new edition every three years and each state adopts on its own schedule.