NEC Updates
The code changes every three years, and knowing what changed is only half the problem. The other half is knowing which edition your jurisdiction actually enforces, because publication and adoption are different events separated by anywhere from one year to five.
These articles cover what moved in each cycle and why it matters on a job site rather than in a committee room. Start with the adoption tracker if you are not certain which book governs your permits, then read the change breakdown for that edition. Everything here is paraphrased for education and is not a substitute for the official NFPA 70 publication or your AHJ's interpretation.
NEC Adoption by State: Which Code Edition Your Jurisdiction Enforces
Which NEC edition each state enforces in 2026, why adoption lags publication, and how to confirm the code your AHJ will actually inspect you against.
Read it →GFCI vs AFCI: What Each Does and Where Each Is Required
The difference between ground-fault and arc-fault protection, where each is required, how the requirements expanded by NEC edition, and when you need both.
Read it →2026 NEC Code Changes: Everything Electricians Need to Know
Every 2026 National Electrical Code change ranked by real-world impact: reorganization, GFCI for HVAC, arc flash labeling, load calcs and EV rules.
Read it →How the NEC Has Changed from 2008 to 2023
Fifteen years of National Electrical Code changes across six cycles: GFCI, AFCI, tamper-resistant receptacles, surge protection and energy storage.
Read it →NEC 2023 vs 2020: Key Changes Every Electrician Needs to Know
What changed between the 2020 and 2023 NEC: expanded GFCI, emergency disconnects, surge protection and energy storage, broken down article by article.
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