NEC® Changes · 2026 NEC®

511.5 Major and minor repair garages

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

What changed in 511.5

Walls used to limit classified areas in repair garages must now be solid, with no openings through them.

Point by point

  • Table 511.5(C), covering heavier-than-air fuel in both major and minor garages, changed how area separation is described.

The full lesson is in the Pro Version

Get the whole breakdown

  • 3 more points on exactly what changed
  • The 2023 rule next to the 2026 rule, side by side
  • Why it changed
  • What to do and check on the job

One membership unlocks every NEC® change lesson for 2020, 2023 and 2026, plus every video, quiz, flashcard and the Testing Center.

Checking your membership…

This section across NEC® editions

2020 NEC®No change

This section did not change from 2017 to 2020.

2023 NEC®No change

This section did not change from 2020 to 2023.

2026 NEC®RevisedYou're here

Walls used to limit classified areas in repair garages must now be solid, with no openings through them.

More 2026 changes in Article 511

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.

NEC® and National Electrical Code® are registered trademarks of the National Fire Protection Association (NFPA). Electrical Exam Coach is not affiliated with or endorsed by NFPA.

Find it faster on test day

Get a code book that's already tabbed and highlighted.