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News of the Day June 4, 2026
Updated Wisconsin Electrical and Plumbing Codes Take Effect September 1, 2026
On Monday, the Wisconsin Department of Safety and Professional Services (DSPS) announced new state safety codes for electrical and plumbing work will take effect September 1. Beginning on that date, any electrical or plumbing plans submitted for review to DSPS or its delegated agents must adhere to the new code requirements.
The interim update to Wisconsin’s plumbing code provides clarity for stakeholders by addressing inconsistencies between the current state plumbing code, other DSPS rules, and some national standards the department has adopted.
The electrical code update adopts 2023 National Electrical Code (NEC) standards, with specific changes and omissions to ensure it conforms to Wisconsin statutes and is consistent with DSPS procedure. The current Wisconsin electrical code is based on 2017 NEC standards.
The new plumbing and electrical codes are set to be published on June 29, 2026 and take effect
September 1, 2026.
Starting October 1, the code changes will be reflected in questions on the trades exams offered by Wisconsin DSPS and third-party testing company Pearson Vue.