The National Electrical Code (NEC) is a set of standards for electrical installations in the United States. It aims to ensure safety and efficiency in electrical systems by providing guidelines for wiring, equipment, and installations. The NEC is updated every three years to incorporate new technologies and safety practices. The code is developed by the National Fire Protection Association (NFPA) and is widely adopted by states and local jurisdictions. Compliance with the NEC helps prevent electrical hazards, such as fires and shocks, making it essential for electricians, builders, and homeowners to follow its regulations.