NEC® Changes · 2026 NEC®

225.42 Surge protection (outside feeders)

DeletedChanged in the 2026 NEC® (from the 2023 NEC®)· Updated October 24, 2026

What changed in 225.42

Removed because the feeder surge rule already covers it.

Point by point

  • 225.42, the surge protection rule for outside feeders, was deleted.

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  • One more point on exactly what changed
  • The 2023 rule next to the 2026 rule, side by side
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This section across NEC® editions

2020 NEC®No change

This section did not change from 2017 to 2020.

2023 NEC®New

Outside feeders that supply dwelling units, dorm units, hotel and motel guest rooms, or nursing home patient sleeping rooms now need surge protection.

Open the 2023 page →
2026 NEC®DeletedYou're here

Removed because the feeder surge rule already covers it.

More 2026 changes in Article 225

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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