What authority enforces the requirements set by the NEC?

• A. authority having jurisdiction
• B. the manufacturer
• C. the homeowner
• D. the electrician

Answer: (A)

Enforcement of NEC requirements is carried out by the authority having jurisdiction. The NEC is a model code that jurisdictions adopt, and the local code official—the AHJ—enforces it. This authority issues permits, conducts inspections, and requires fixes if work doesn’t meet the code. The AHJ can be a city or county building department, an electrical inspector, or a fire marshal, depending on where you are. Manufacturers ensure products meet standards, but they don’t enforce the NEC in a project. Homeowners don’t have enforcement power, and electricians must follow the NEC, but the one who enforces and interprets the rules in the field is the AHJ.