Why the 2023 NEC Matters
The National Electrical Code is revised on a three-year cycle, with each edition introducing new requirements driven by field experience, product innovation, and emerging technologies. The 2023 NEC (NFPA 70-2023) contains significant updates across residential, commercial, and industrial installations. Not every jurisdiction adopts the current edition immediately — many are still enforcing the 2020 or 2017 NEC — but understanding the 2023 changes is essential for designers and contractors working in states that have adopted it or are planning to.