NFPA 70: National Electrical Code®

Current Edition: 2011    Next Edition: 2014

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What Is NFPA 70?

Adopted in all 50 states, the NEC is the benchmark for safe electrical design, installation, and inspection to protect people and property from electrical hazards.  Official document scope.

What does NFPA 70 address?

The NEC addresses the installation of electrical conductors, equipment, and raceways; signaling and communications conductors, equipment, and raceways; and optical fiber cables and raceways in commercial, residential, and industrial occupancies.  Table of Contents.

Archived revision informationInformation

Read the archived revision information

Tentative Interim Amendment (TIA)Information

Proposed TIA No. 1096, Reference: 516.3(A)(1)(a) and 516.10(A), Comment Closing Date: 5/24/2013 (PDF, 48.5 KB)

Proposed TIA No. 1097, Reference: 445.20, Comment Closing Date: 6/14/2013 (PDF, 71.0 KB)

TIA 11-1 (issued: 3/1/2011) (PDF, 21.8 KB)

See SC Decision #11-2 below regarding TIA 11-1.

TIA 11-2 (issued: 10/19/2011) (PDF, 25.8 KB)

TIA 11-3 (issued: 10/19/2011) (PDF, 24.2 KB)

TIA 11-4 (issued: 10/19/2011) (PDF, 19.0 KB)

ErrataInformation

Errata 70-11-1 (issued: 4/8/2011) (PDF, 47.6 KB)

Errata 70-11-2 (issued: 1/24/2012) (PDF, 18.2 KB)

Formal Interpretations (FIs)Information

Formal Interpretations (PDF, 144.9 KB)

Standards Council Decisions

D#11-2, Decision on TIA No. 1005 (PDF, 50.6 KB)

View the document online (read only)

View the 2011 edition online

Additional Information

NEC® Style Manual (PDF, 187.1 KB)

Supplemental Operating Procedures for the NEC® Project (issued: 8/9/2012) (PDF, 27.7 KB)

List of state and city codes and ordering information

Articles and Reports

Influence of Damage and Degradation on Breakdown Voltage of NM Cables (PDF, 3.2 MB)

Electrical Vehicle Charging and NFPA Electrical Safety Codes and Standards

Smart Grid and NFPA Electrical Safety Codes and Standards


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