NEC® Changes · 2023 NEC®

555.4 Marina service equipment

RevisedChanged in the 2023 NEC® (from the 2020 NEC®)· Updated October 24, 2026

What changed in 555.4

Marina service equipment must be on land, at least 5 feet horizontally from the structure it serves, and mounted 12 inches or more above the electrical datum plane.

Point by point

  • Service equipment for marinas, docking facilities and floating buildings still has to be on land.

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  • 3 more points on exactly what changed
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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

Marina service equipment must be on land, at least 5 feet horizontally from the structure it serves, and mounted 12 inches or more above the electrical datum plane.

2026 NEC®No change

This section did not change from 2023 to 2026.

More 2023 changes in Article 555

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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