NFPA 70®: National Electrical Code® (NEC®), 2026 Edition

NFPA 70®, National Electrical Code® (NEC®), is the authoritative document addressing electrical installations in residential, commercial, and industrial settings. The NEC is revised every three years to stay in sync with industry practices, emerging trends, and the development and introduction of technologies to provide comprehensive rules for designers, installers, inspectors, engineers, electricians, and anyone else who works in the electrical industry.

Changes include new, expanded, and revised content and provisions for:

• New voltage-specific articles for systems over 1000V AC and 1500V DC, improving clarity and precision.
• Reorganized content for better usability, with streamlined sections and reduced redundancies.
• Integration of Chapter 8 (Communications Systems) with Chapters 1–4 for consistent rule application.
• New Article 750, covering grounding and bonding for limited-energy systems.
• Updated demand factors to reflect modern energy-efficient loads.
• A preview of future changes with Informative Annex L, outlining the proposed structure for the 2029 NEC.