NFPA 70, National Electrical Code (NEC), is the authoritative document addressing electrical installations in residential, commercial, and industrial settings. Stay up to date as you design, install, and inspect with the most current requirements. The NEC has been revised and expanded to stay in sync with industry practices, emerging trends, and the development and introduction of technologies. The document is completely reorganized for improved ease of use and features an expanded Article 100 that consolidates all the code's defined terms in one place to help you quickly locate critical NEC content. This version includes self-adhesive index tabs.