Article 120 Load calculations (moved)
What changed in Article 120
Load calculations moved from Article 220 to a new Article 120 in Chapter 1, and now also cover RV parks and mobile and manufactured homes.
Point by point
- Service, feeder and branch-circuit load calcs moved out of Article 220 and into a new Article 120 in Chapter 1.
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- 4 more points on exactly what changed
- The 2023 rule next to the 2026 rule, side by side
- Why it changed
- What to do and check on the job
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This section across NEC® editions
2020 NEC®No change
This section did not change from 2017 to 2020.
2023 NEC®No change
This section did not change from 2020 to 2023.
2026 NEC®MovedYou're here
Load calculations moved from Article 220 to a new Article 120 in Chapter 1, and now also cover RV parks and mobile and manufactured homes.
More 2026 changes in Article 120
This is a plain-English summary, not the NEC®'s exact wording. Always check the full section in the NEC® edition your area has adopted, plus any local amendments.
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