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Checked against primary sources 2026-09-07

The October 1 switch

Wisconsin Electrician Exam NEC Edition: 2017 or 2023

This is the single most useful fact on this site right now. The book you carry into a Wisconsin exam room depends on the date of your appointment, the DSPS exam pages have not been updated yet, and the two published wordings of the change date do not match.

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On this page
  1. What the exam pages say today
  2. What changes from October 1, 2026
  3. The difference between those wordings, left unresolved
  4. DSPS had not updated its exam pages when we read them
  5. What to do, by your test date
  6. Buying a code book in this window
  7. The work side is already settled
  8. Questions people ask
  9. What this page cites

What the exam pages say today

Today is September 7, 2026. Every DSPS electrician exam page we read names "2017 National Electrical Codebook (NEC) or Handbook" as the code book allowed in the room. That is the journeyman page, the master page, the residential journeyman page, the residential master page and the industrial journeyman page.

The standalone permitted materials PDF says the same, and it is stamped "Last Updated: June 2025."

So as the department's own pages stand right now, the exam is written to the 2017 National Electrical Code and the book you bring is a 2017 book.

What changes from October 1, 2026

From October 1, 2026 the exam is expected to test the 2023 National Electrical Code. The published sources say so, and they do not say it the same way.

DSPS, in its press release of September 3, 2026: "DSPS has started updating its licensing exams to reflect the electrical code changes. The agency expects exam updates to be completed by October 1."

EC&M, June 30, 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."

Wisconsin Independent Businesses, June 4, 2026: carries that same sentence, word for word.

The difference between those wordings, left unresolved

Read them side by side. The trade press states October 1 as the date the exam content changes. DSPS itself says only that it "expects exam updates to be completed by October 1."

An expectation is a target, not a guarantee. We are not going to resolve that difference for you by picking the tidier sentence, because only DSPS can, and it has not.

What we will say is what follows from it. Nobody should book a Wisconsin electrician exam for early October on the assumption that the questions have definitely moved, and nobody should book one for late September on the assumption that they definitely have not.

DSPS had not updated its exam pages when we read them

All five electrician exam pages still named the 2017 edition on September 7, 2026, six days after the field code changed.

The same Trades Credentialing Examination Information page carries a stale line about a different trade: "Exams will be administered under the updated plumbing code starting in November 2023." That line points at a change dated November 2023.

Take that as a warning about how quickly the pages are maintained, rather than as proof that nothing is happening behind them. The right move is to open the exam page for your credential on the day you book and read the reference list on it.

What to do, by your test date

Sitting on or before September 30, 2026. Carry the 2017 book, because that is the edition on the exam page and on the permitted materials list. Check the page again the week of your appointment.

Sitting on or after October 1, 2026. Plan on the 2023 book, and confirm it on the exam page for your credential before you buy. If the page still says 2017 when your date is close, that is a question for DSPS rather than for a forum.

Sitting in the first days of October. This is the awkward window. Ask DSPS in writing which edition your paper is written to, and keep the answer.

Whatever the date, the two Wisconsin chapters in your binder do not change. SPS 305 and SPS 316 are permitted references either way.

Buying a code book in this window

The book that is allowed is the book DSPS lists on the exam page, and DSPS has not changed that page yet. Anyone buying for an exam between now and the end of September should buy against that page on the day they book.

If your appointment is in October or later, you are buying the 2023 book, which is also the edition Wisconsin now enforces in the field. That makes it the more useful purchase of the two for anybody who is going to keep working here.

Our own question sets carry the 2026 numbering, which is a third edition again. What we hold on the moves compares the 2026 edition with the 2023 one, and it does not reach a 2017 book, so it cannot tell you what a 2026 section number is in the 2017 edition. Look each rule up by subject in your own copy.

The work side is already settled

None of this uncertainty touches the field. SPS 316 adopted the 2023 National Electrical Code with Wisconsin amendments on September 1, 2026 under CR 26-016, and that is the code an inspector is holding today.

Read which edition is in force for the work side, and the one month gap for what it means to work to one book and be examined on another.

Questions people ask

Which NEC edition is the Wisconsin electrician exam based on?

The 2017 edition, as every DSPS electrician exam page reads on September 7, 2026. DSPS expects exam updates to the 2023 edition to be completed by October 1, 2026.

Does the exam change on October 1, 2026?

Two trade sources say the change starts on October 1. DSPS says only that it expects exam updates to be completed by October 1. Those wordings differ, and we print both rather than choosing one.

Which code book do I take to a September 2026 exam?

The 2017 book, because that is what the DSPS exam page and the permitted materials list name. Check the page again the week of your appointment.

Which code book do I take to an October 2026 exam?

Plan on the 2023 book and confirm it on the exam page for your credential before you buy. If your date falls in the first days of October, ask DSPS in writing which edition your paper uses.

Why do the DSPS exam pages still say 2017?

They had not been updated when we read them on September 7, 2026. The same information page also carries a stale line about plumbing exams and November 2023, so the pages are not maintained quickly.

Does the edition change affect what I can bring?

Only the code book itself. The binder with SPS 305, SPS 316 and printed notes and the two bound reference books are unaffected by which edition the questions use.

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What this page cites

If your book is the other edition

The 2023 to 2026 section crosswalk maps every section that moved, both directions, $29 once.

NEC and National Electrical Code are registered trademarks of the National Fire Protection Association.

Trojan Digital Marketing is an independent company. We are not affiliated with, endorsed by, or sponsored by NFPA, the Department of Safety and Professional Services, Pearson VUE, or any licensing authority, school or union.

The Wisconsin examinations are open book, and the allowance is a generous one: the code book or handbook, one binder holding SPS 305, SPS 316 and printed notes, and up to two bound reference books. The DSPS exam pages still name the 2017 National Electrical Code, DSPS expects its exam updates to be completed by 1 October 2026, and the trade press reports the questions changing from that date. The field code, SPS 316, went to the 2023 edition on 1 September 2026, so for one month the book you work to and the book you test on are different.

All practice questions are original. They are not actual exam questions.

Built and maintained by Jeff Clerisier, Trojan Digital Marketing.

Every rule here is cited to the section it comes from, and corrections are logged in public with the date. This is study material rather than electrical advice, and it does not replace your own code book or your inspector.

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