Which NEC edition does Connecticut enforce?

NEC 2020 (current)

The short answer

Connecticut enforces NEC 2020, the current edition there, statewide, in effect since October 1, 2022.

Current edition
NEC 2020 (current)
Adoption
Statewide
In effect since
October 1, 2022
Primary source
portal.ct.gov

Code adoption cycles change. Always confirm the edition and amendments in force with your Authority Having Jurisdiction (AHJ) before permitting work.

How does Connecticut adopt the NEC?

Connecticut adopts the NEC as part of the State Building Code with the usual administrative amendments; no broad AFCI/GFCI exemption is on record. Licensing distinguishes E-1 (unlimited) and E-2 (limited/residential) electrical contractor classes.

What are Connecticut's amendments to the NEC?

The app's record for Connecticut lists no individual amendments; the adoption summary above says how the state applies the code.

Who issues electrical permits in Connecticut?

Local building officials issue permits and perform inspections under the state building code.

Who licenses electricians in Connecticut?

Statewide licensing of electrical contractors and journeypersons through the Department of Consumer Protection. Licensing board: Connecticut Department of Consumer Protection, Occupational & Professional Licensing Division.

Connecticut Department of Consumer Protection, Occupational & Professional Licensing Division

Is Connecticut moving to a newer NEC edition?

The next code package (2024 I-codes with NEC 2023) was expected 2026-07-01 but is delayed pending Legislative Regulation Review Committee approval; no new date has been set.

Is Connecticut on NEC 2026?

No. NEC 2026 is the newest edition; the one current in Connecticut is NEC 2020, two editions older. NFPA publishes a new edition every three years and each state adopts on its own schedule.

What changed in NEC 2026, section by section

Also on NEC 2020