110.12 Neat and workmanlike work
What changed in 110.12
A new part covers cables and conductors run on the surface of walls and ceilings.
Point by point
- New 110.12(C) covers cables and conductors run exposed on the surface of walls and ceilings.
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- 3 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
A new part covers cables and conductors run on the surface of walls and ceilings.
2023 NEC®Revised
The old neat and workmanlike wording was replaced with professional and skillful. The expectation for quality work is the same.
Open the 2023 page →2026 NEC®Revised
Subsection (C), on supporting exposed cable on walls and ceilings, was deleted. The professional and skillful workmanship rule stays.
Open the 2026 page →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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