110.17 Servicing and maintenance
What changed in 110.17
A new section says qualified persons must service and maintain equipment, following the maker's instructions, industry standards or inspector approval, and using identified replacement parts.
Point by point
- Servicing and maintenance has to be done by qualified persons.
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Get the whole breakdown
- 3 more points on exactly what changed
- The 2020 rule next to the 2023 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®NewYou're here
A new section says qualified persons must service and maintain equipment, following the maker's instructions, industry standards or inspector approval, and using identified replacement parts.
2026 NEC®Revised
Maintenance is no longer covered in this section.
Open the 2026 page →More 2023 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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