Nec Electrical Code Book 2025. This is our code and the legally. The adopted electrical code can vary by state or local jurisdiction, and often includes a local authority having jurisdiction (ahj) that inspects electrical installations for compliance with the adopted standard.
The national electrical code (nec), or nfpa 70, is a united states standard for the safe. As part of its commitment to enhancing public safety, nfpa makes its codes and standards.