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The National Electric Code (NEC) is the authoritative set of standards that governs the installation and maintenance of electrical wiring and equipment in the United States. Established by the National Fire Protection Association (NFPA), the NEC aims to protect people and property from electrical hazards by outlining requirements for safe electrical design, installation, and inspection.

This code is widely adopted by state and local jurisdictions, making it a critical reference for electricians and builders to ensure compliance with safety practices. While OSHA regulations focus on workplace safety more broadly, including various safety standards in many industries, and Building Codes and Electrical Standards may cover additional aspects of construction and installation, the NEC specifically and comprehensively addresses the nuances and specific safety measures essential for electrical wiring systems.