250.121 Restricted use of EGCs
What changed in 250.121
The rule that a building's steel frame can't serve as an EGC moved here from 250.136, joining the rule on EGCs doubling as electrode conductors.
Point by point
- 250.121 now has two parts: (A) covers EGCs used as grounding electrode conductors, and (B) covers building steel.
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Get the whole breakdown
- 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®MovedYou're here
The rule that a building's steel frame can't serve as an EGC moved here from 250.136, joining the rule on EGCs doubling as electrode conductors.
2023 NEC®No change
This section did not change from 2020 to 2023.
2026 NEC®No change
This section did not change from 2023 to 2026.
More 2020 changes in Article 250
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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