From February 2022 to September 2023, National Electrical Code expert Mark Earley explained all the changes that went into the 2023 edition of the NEC as part of the three-year revision cycle. Below are links to all 20 parts of that series, including which sections of the 2023 NEC were discussed in each story.

Part 1: Accepting (NEC) Change: What to expect in the 2023 National Electrical Code (NEC Style Manual; new, deleted and relocated articles and revised titles)

Part 2: 2023 Code Article and Definition Revisions (New articles and revised titles; Article 100)

Part 3: Article 100 Revisions and Additions (Article 100, cont.)

Part 4: More of What’s Changed for Article 100 (Article 100, cont.)

Part 5: Diving Into the Nitty Gritty (Articles 90 & 110)

Part 6: Examining Adjustments to Chapter 2 (200.2 - 210.52(C))

Part 7: More on 2023’s Chapter 2 Updates (210.70 - 230.71(B))

Part 8: Final Chapter 2 Updates (230.85 - 250.118)

Part 9: Exploring Chapter 3 in 2023 (Article 300 - 314.27)

Part 10: Continuing our Code Journey (342.24 - 406.9)

Part 11: More Revisions and Additions to Chapter 4 (406.12 - 430.52(C))

Part 12: Rolling Into Chapter 5 (430.83(F) - 500.6(D))

Part 13: Traversing Through More of Chapter 5 (500.7 - 505.20(C))

Part 14: More on Chapter 5’s Revisions (Article 506 - 517.22)

Part 15: Continuing With Special Occupancies (517.30 - 551.40(D))

Part 16: Navigating Into Chapter 6 (551.72 - 625.40)

Part 17: Looking Further Into Chapter 6 (625.42 - 680.43(A))

Part 18: Shedding More Light on Chapter 6 (680.44 - 690.12)

Part 19: Venturing From Chapter 6 Into 7 (690.15 - 700.5)

Part 20: Concluding the 2023 Code Review (700.11 - Chapter 9, Table 13)