Texas Electrical Code PrepWhat changed in the 2026 edition

Checked against primary sources 2026-08-24

Texas adopts the 2026 NEC on September 1, and nobody has answered the obvious questions

The date is published. What is not published is which edition governs an exam you sit in October, or whether the course you already paid for still counts.

On this page
  1. The date, and where it comes from
  2. Texas did not adopt it clean
  3. What we can tell you, and what nobody has answered
  4. One genuinely new section
  5. What to do about your study material
  6. What this page cites

The date, and where it comes from

The edition that governs your work is the one your state adopted, not the newest one published The National Fire Protection Association publishes a new edition of the code on a three year cycle. A state adopts an edition on its own schedule and by its own rule, so there is always a gap between publication and enforcement, and the gap is a different length in every state. Local amendments sit on top of the adopted edition. Buying the newest book does not change which edition an inspector or an examination is working from. the gap always there, and a different length in every state PUBLISHED NFPA, every three years the book now exists ADOPTED the state, on its own schedule this is the one that applies AMENDED state and local changes stacked on the adopted edition a newer book on your bench does not change the edition you are held to
Published, adopted, amended. Three different dates, and only the middle one decides what applies to you. Texas adoption is 16 TAC 73.100. Confirm local amendments with the authority having jurisdiction.

The proposal ran in the Texas Register in March 2026 and the Commission of Licensing and Regulation adopted it by unanimous vote on July 28, 2026. Effective September 1, 2026, the department adopts the 2026 National Electrical Code as approved by the National Fire Protection Association on September 9, 2025.

Until August 31 the adopted edition is the 2023. On September 1 it is the 2026. There is no phase-in.

PSI updated its candidate bulletin in July 2026 and states in capitals that the examinations will be referenced to the 2026 NEC.

Texas did not adopt it clean

There is one Texas amendment, and it is worth knowing because it is the kind of detail a question can turn on.

On the ground-fault protection requirements for outdoor outlets, Texas keeps the exception that exempts listed heating, ventilation and air conditioning equipment, and it keeps it without expiration.

The exception exists in the national code with a sunset. Texas removed the sunset. In Texas, that exemption does not go away.

Read the section in your own code book and then read the Texas Register notice alongside it. The difference is one clause and it is permanent here.

What we can tell you, and what nobody has answered

Three questions come up constantly right now and the published sources are silent on all three.

We are not going to guess at these. TDLR customer service takes calls on 512-463-6599, or 800-803-9202 in state, and will route a question to the Education and Examination Division. It is worth the phone call if any of the three applies to you. When we have answers on the record we will put them here with the date we got them.

What we can say is what the rule itself says. The continuing education rule was not amended alongside the code adoption. Its text still requires four hours covering the code as adopted, or the current NFPA edition. That disjunction is in the rule, and whether it does any work here is exactly what we could not settle.

One genuinely new section

The 2026 edition arrived with a tentative interim amendment already folded in before printing. It adds a new section in the motors article prohibiting ground-fault circuit interrupters and special purpose ground-fault circuit interrupters between power conversion equipment output terminals and the motor.

It was issued in August 2025 and took effect that September, and the amendment states the text was incorporated into the document prior to printing. So it is in the book, not a supplement.

This is a field problem written into the code. Variable frequency drives produce leakage current that trips ground-fault devices, and installers had been placing protection where it does not belong. The new section closes it as a prohibition rather than a calculation.

It is new in this edition, so no material written before 2026 mentions it, and nothing you already know covers it.

What to do about your study material

If you are testing before September 1, your 2023-based material is correct for your exam.

If you are testing after, it is not, and the gap is not evenly distributed. Some articles barely moved between editions. Others were reorganized.

The honest answer is that you need the edition your exam references, and after September 1 that is the 2026. Material keyed to the wrong edition is expensive because of when you find out, which is in the room, with the clock running.

What this page cites

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, TDLR, PSI Services, or any licensing authority.

Bring your own current copy of the National Electrical Code. The Texas exam is open book.

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.