NFPA 70®, National Electrical Code® (NEC®), Now Used in All 50 States

NFPA 70®, National Electrical Code® (NEC®), 2020 edition, is now recognized by 24 states, making the NEC the electrical authority on electrical safety standards in the United States. Additionally, NFPA® has made the 2020 NEC available on NFPA LiNK® for improved access and it will be available in Spanish March 2023.

View which NEC® edition your state uses.

The world’s leading electrical safety resource since 1897

NFPA 70, National Electrical Code, was first introduced in 1897 by 1,200 individuals in the United States and across Europe and unanimously approved by the National Board of Fire Underwriters.

Today, the NEC is incorporated by reference globally—from Europe and Latin America to China and the Middle East—and sets the foundation for electrical safety in residential, commercial, and industrial occupancies around the world.

This trusted code is constantly reviewed and updated by active electrical experts—the 2020 NEC had more than 3,700 public inputs and 1,900 comments—to help electricians install systems safely in this ever-changing world.

The gold standard, upgraded

Known as the “gold standard” in electrical safety, the NEC represents the latest comprehensive regulations for everything electrical—wiring, overcurrent protection, grounding, and electrical equipment—and covers all electrical systems, from residential to alternative energy systems.

The 2023 edition of the NEC, which has already been recognized by Massachusetts, can be bundled with Mike Holt’s Illustrated Guide to Changes to the National Electrical Code—a companion guide that outlines the updates from the previous edition. The 2023 NEC is also available in NFPA LiNK®.

Getting more from the National Electrical Code

For a more comprehensive understanding of the NEC, NFPA also offers online trainings for each edition year based on your states needs on the subject, which helps prepare electrical professionals for any safety challenge they might encounter.

The 16-hour 2020 NEC training course is designed to boost users’ knowledge—and their careers—through engaging interactive exercises. The training also qualifies as 1.6 continuing education units (CEUs) for electrical professionals.

View the latest NEC changes, or purchase the edition your state uses,

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