The National Electrical Code (NEC) is a set of standards for electrical wiring and installations in the United States. It aims to ensure safety and efficiency in electrical systems, reducing the risk of electrical fires and accidents. The NEC is updated every three years to incorporate new technologies and 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 is often required for obtaining electrical permits and passing inspections, making it essential for electricians and builders to follow these guidelines.