Real Knowledge - Verified

Wisconsin — electrical code & licensing

Verified

The code

Edition in force	2023 NEC (NFPA 70, including TIAs and errata issued before 2025-01-01), incorporated by reference at Wis. Admin. Code SPS 316.007, with Wisconsin amendments throughout ch. SPS 316
Edition structure	One statewide edition
Effective date	2026-09-01
Date as recorded	2026-09-01 (CR 26-016; the prior incorporation was the 2017 NEC)
Adopted by	Wisconsin Department of Safety and Professional Services (DSPS), under Wis. Stat. ch. 101
Adoption source	http://docs.legis.wisconsin.gov/code/admin_code/sps/safety_and_buildings_and_environment/301_319/316/i/007
State amendments	Amendments ride in the adoption document itself — http://docs.legis.wisconsin.gov/code/admin_code/sps/safety_and_buildings_and_environment/301_319/316/i/007

Licensing

Model	Statewide state credentialing (DSPS, ch. SPS 305; Wis. Stat. Sec. 101.862): Electrical Contractor (organization credential); Master Electrician, Master Electrician - Registered, and Master Electrician - Residential; Journeyman Electrician, Journeyman Electrician - Industrial, and Journeyman Electrician - Residential; Registered Electrician; Electrical Apprentice (incl. Industrial and Residential) registrations. DSPS also credentials Commercial Electrical Inspectors and Electrical Inspection Agencies.
Authority	Wisconsin Department of Safety and Professional Services (DSPS)
Licensing source	http://dsps.wi.gov/a-z-programs-list/electrical/
License classes	https://dsps.wi.gov/a-z-professions-list/

Permits & inspections

State commercial electrical permit regime administered by DSPS with authority delegable to municipalities (DSPS Electrical program page); inspections by credentialed commercial electrical inspectors or registered inspection agencies.

How this record was verified

Adoption	Verified
Amendments	Verified
Licensing	Verified
Permits & inspections	Verified

Working notes

EDITION JUMP - recorded exactly: Wisconsin remained on the 2017 NEC until 2026-09-01, when CR 26-016's amendment of SPS 316.007 moved the incorporation directly to the 2023 NEC, skipping the 2020 edition entirely. Secondary roundups listing Wisconsin on the 2017 NEC are stale after 2026-09-01. Wisconsin's amendments are not a separate packet - ch. SPS 316 is itself the amended electrical code, so the amendments URL points to the chapter's incorporation section.

Coded to schema v2 Option B at the 2026-10-27 wiring pass from the v1 row verbatim; migration settles no open facts.

Compiled from the official sources above; retrieved 2026-10-25. Record basis: official text read firsthand.

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.