702.7 Standby signs
What changed in 702.7
Standby system signs now go at the outdoor emergency disconnect on one- and two-family homes, matching the new 230.85 rule.
Point by point
- Commercial and industrial sites: a sign at the service equipment shows the type and location of each on-site standby source.
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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
- What to do and check on the job
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This section across NEC® editions
2020 NEC®RevisedYou're here
Standby system signs now go at the outdoor emergency disconnect on one- and two-family homes, matching the new 230.85 rule.
2023 NEC®Revised
The standby source sign at the service now covers every building other than one- and two-family dwellings, not just commercial and industrial jobs. Homes keep their sign at the outdoor emergency disconnect.
Open the 2023 page →2026 NEC®No change
This section did not change from 2023 to 2026.
More 2020 changes in Article 702
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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