Changes from 2017 to 2020
2020 NEC®
273 changes
52 New209 Revised11 Moved1 Deleted
Start with the big ones
- 230.67 Surge protection
- 230.85 Emergency disconnect
- 210.8 GFCI protection
- Article 242 Overvoltage protection (new article)
NEC® Changes
What changed in the NEC®
Every change in the 2020, 2023 and 2026 NEC®, section by section, in plain English. Follow any section from one edition to the next.
742changes explained
635lesson pages
3NEC® editions
Changes from 2020 to 2023
2023 NEC®
229 changes
57 New168 Revised4 Moved
Start with the big ones
- 210.8 GFCI protection
- 230.67 Surge protection
- 210.52 Dwelling receptacle outlets
- 408.43 Panelboard orientation
Changes from 2023 to 2026
2026 NEC®
240 changes
38 New187 Revised8 Moved7 Deleted
Start with the big ones
- Article 120 Load calculations (moved)
- 230.70 Service disconnect location
- 210.8 GFCI protection
- 210.12 AFCI protection
Every lesson, built the same way
- What changedThe change in one or two plain sentences.Free
- Point by pointEach piece of the change, one fact at a time.First point free
- Before and nowHow the rule read in the last NEC® next to how it reads today.Pro
- Why it changedThe reason behind it, so it sticks.Pro
- On the jobWhat to do and check in the field and at inspection.Pro
The 2020 · 2023 · 2026 buttons on every lesson show where that section came from and where it went next, even when it moved to a new number.
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