The code you—and the industry—rely on to keep up with constantly evolving electrical hazards and demands. NFPA 70, the National Electrical Code (NEC), is the leading standard for electrical installations in residential, commercial, and industrial environments. Updated every three years, the NEC reflects current practices, emerging trends, and new technologies, offering thorough guidelines for designers, installers, inspectors, engineers, electricians, and all electrical professionals. Its structure is designed to make the content easy to navigate and apply.