110.21 Markings
What changed in 110.21
Reconditioned equipment now has to have its original listing mark removed, on top of the reconditioned marking rules that were already in place.
Point by point
- New: the original listing mark has to be removed from reconditioned equipment.
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- 4 more points on exactly what changed
- The 2017 rule next to the 2020 rule, side by side
- Why it changed
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This section across NEC® editions
2020 NEC®RevisedYou're here
Reconditioned equipment now has to have its original listing mark removed, on top of the reconditioned marking rules that were already in place.
2023 NEC®Revised
Reconditioned gear markings were split into three items, the original listing mark can now be removed or made permanently unreadable, and the rest of the nameplate can stay.
Open the 2023 page →2026 NEC®No change
This section did not change from 2023 to 2026.
More 2020 changes in Article 110
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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