By (NFPA) National Fire Protection Association. National Electrical Code 2020, Spiral Bound Version (National Fire Protection Associations National Electrical Code).
BK: NFPA 70 National Electrical Code 2020 (Spiral Bound Version)
National Fire Protection Association, Quincy, Massachusetts. The National Fire Protection Association (NFPA) is a global self-funded nonprofit organization, established in 1896, devoted to eliminating death, injury, property and economic loss due to fire, electrical and related hazards.
