National Electrical Code 2023 NFPA 70 (AVAILABLE ONLY AT NFPA.ORG)
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PLEASE NOTE: The NFPA 70 can be purchased through https://catalog.nfpa.org | Section 4.4.1 of the NFPA 1192 standard requires compliance to the National Electrical Code (NFPA 70) for 120V electrical systems. *The RV Industry Association does not own the rights to this standard*