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National Electrical Code
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Chapter 1
General
Chapter 2
Wiring and Protection
Chapter 3
Wiring Methods and Materials
Chapter 4
Equipment for General Use
Chapter 5
Special Occupancies
Chapter 6
Special Equipment
Chapter 7
Special Conditions
Chapter 8
Communications Systems
Chapter 9
Interconnected Electric Power Production Sources
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Home / Code Library / massachusetts / National Electrical Code 2020 / Chapter 3
Adopts With Amendments
Chapter 3

Wiring Methods and Materials

National Electrical Code 2020

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Code sections are sourced from the International Code Council (ICC) and NFPA. Refer to ICC Digital Codes or NFPA for the authoritative source documents.