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Checked against primary sources 2026-09-05

What comes after the 2025 code

California 2028 Electrical Code: The 2026 NEC Cycle

The 2026 National Electrical Code reaches California through the 2027 Triennial Code Adoption Cycle, and the result is the 2028 edition of Title 24, effective January 1, 2029. There's also an intervening cycle before that. Here's what's scheduled and what isn't.

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On this page
  1. The 2027 Triennial Code Adoption Cycle
  2. The 2025 Intervening Cycle, which comes first
  3. The timeline as it stands
  4. What the 2026 NEC moves
  5. Articles that go away
  6. What doesn't change
  7. What this means for the exam
  8. Questions people ask
  9. What this page cites

The 2027 Triennial Code Adoption Cycle

The Building Standards Commission's page for this cycle says it will adopt the 2027 editions of the ICC and IAPMO model codes and the 2026 edition of the NEC.

Those changes become the 2028 edition of the California Building Standards Code, Title 24 of the California Code of Regulations, effective January 1, 2029. So the electrical part of that will be the 2028 California Electrical Code, built on the 2026 NEC.

Milestone dates on the page are listed as to be determined, so there's no proposal deadline or hearing date to plan around yet.

The 2025 Intervening Cycle, which comes first

Between triennial editions California runs an intervening cycle that produces supplements rather than a new edition.

The 2025 Intervening Code Adoption Cycle will result in supplements to the 2025 edition of Title 24, effective July 1, 2027. The deadline for state agencies to submit proposed code changes for that cycle was December 1, 2025.

The page doesn't say whether Part 3, the electrical code, is among the parts being amended. So a July 1, 2027 change to the electrical code is possible and not confirmed, and that's the honest state of it.

The timeline as it stands

Dates for the 2027 Triennial Cycle's own milestones are to be determined, so treat January 1, 2029 as the fixed point and everything before it as scheduling.

What the 2026 NEC moves

When the model code changes edition, the expensive part isn't the new rules. It's the addresses, because every citation anyone memorized points somewhere else.

These are the moves we hold a record for, with both numbers.

Several of those old addresses are still occupied in the 2026 book by a different subject, which is worse than an empty one. A tab on 450.3 lands on a heading with nothing under it, and a tab on 300.4 lands on a subsection about damage that answers a different question.

Articles that go away

Our crosswalk records Article 770 as gone in the 2026 edition, with the cables themselves in Article 722, and the old Chapter 8 communications material moving into the Chapter 7 limited energy articles.

It also records Article 235 as gone, with branch circuit, feeder and service material for systems over 1000 volts spread across Articles 265 through 268 and grounding and bonding at 270.

That matters for the Voice Data Video certification, because CCR Title 8 section 291.1 defines its qualifying hours by reference to Articles 725, 770, 800, 810 and 820. Those numbers read straight in the 2023 book. What happens to that definition when California moves editions is not something the DIR pages address, and we won't guess.

What doesn't change

Most of it. Ampacity is still Article 310 and Table 310.16 is still Table 310.16. Overcurrent is still Article 240. Grounding and bonding is still Article 250. Boxes are still Article 314. Motors are still Article 430. Chapter 9 is still the tables.

Anyone telling you a 2026 edition makes your whole tab set worthless hasn't compared the two tables of contents. The moves this site documents change and the rest stays put.

What this means for the exam

The certification exam's edition is set by the Candidate Information Bulletin, not by the code cycle. The bulletin currently supplies the 2023 National Electrical Code on screen.

So the code cycle is a signal rather than a schedule for candidates. Watch the bulletin, and expect the exam to move some time after the code does rather than with it. Which edition is on the exam is the page we'll update the day that changes.

Questions people ask

When will California adopt the 2026 NEC?

Through the 2027 Triennial Code Adoption Cycle, which becomes the 2028 edition of Title 24, effective January 1, 2029. Milestone dates for the cycle itself are listed as to be determined.

What is the 2028 California Electrical Code?

It's the electrical part of the 2028 California Building Standards Code, which will be built on the 2026 National Electrical Code. The Commission's 2027 Triennial Cycle page names both.

Will the electrical code change in 2027?

Possibly. The 2025 Intervening Code Adoption Cycle produces supplements to the 2025 Title 24 effective July 1, 2027, but the Commission's page doesn't say whether Part 3 is among the parts amended.

Will the exam move to the 2026 NEC at the same time?

No date is published. The exam's edition comes from the Candidate Information Bulletin, which currently supplies the 2023 edition on screen, and the bulletin can change on its own schedule.

What actually changes in the 2026 NEC?

For most of the book, nothing. The moves this site documents are article and section addresses, including load calculations from Article 220 to Article 120 and transformer overcurrent from 450.3 to 450.5, and this page lists them with both numbers.

Should I buy a 2026 code book now?

Not for the California exam, which supplies the 2023 edition on screen, and not for California field work, where the 2025 California Electrical Code is what's in force. Buy the 2026 book when the document you're held to moves.

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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.

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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