110.3 Using equipment the way it's listed
What changed in 110.3
Cybersecurity for network-connected life safety equipment is now addressed, and instructions for identified equipment must be followed.
Point by point
- New item (8) in 110.3(A): for networked life safety equipment, the inspector weighs cybersecurity, like hacking, unwanted setting changes and safe operation.
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- 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®RevisedYou're here
Cybersecurity for network-connected life safety equipment is now addressed, and instructions for identified equipment must be followed.
2026 NEC®Revised
Following product instructions now has to result in a code-compliant install, and a cybersecurity note was added.
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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