Wisconsin Moving from NEC 2017 to NEC 2023 – Effective September 1, 2026 Wisconsin’s electrical code is transitioning from NEC 2017 to NEC 2023, effective September 1, 2026 — and the update brings real, bottom-line impacts for residential builders. From the elimination of the meter-main disconnect requirement to new surge protection rules, kitchen island receptacle standards, and rollbacks on several GFCI and AFCI provisions, these changes affect both how homes are wired and what they cost to build. Click the button below for a full breakdown of the key changes and what they mean for you.

Click here for more information about the changes.