NEC® Changes · 2020 NEC®

517.10 Health care applicability

RevisedChanged in the 2020 NEC® (from the 2017 NEC®)· Updated October 24, 2026

What changed in 517.10

Part II of Article 517 no longer applies to areas used only for shots, psychiatry, alternative medicine or optometry.

Point by point

  • The list of areas that Part II doesn't cover was clarified and expanded.

The full lesson is in the Pro Version

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

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®RevisedYou're here

Part II of Article 517 no longer applies to areas used only for shots, psychiatry, alternative medicine or optometry.

2023 NEC®Revised

Pharmacy services not attached to a health care facility are now exempt from Part II, and two new notes point to the TR receptacle and AFCI rules.

Open the 2023 page →
2026 NEC®No change

This section did not change from 2023 to 2026.

More 2020 changes in Article 517

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.