What NEC article has the majority of definitions?

• A. Article 100
• B. Article 50
• C. Article 200
• D. Article 300

Answer: (A)

Definitions used throughout the NEC are found mainly in Article 100. This article serves as the glossary for the entire code, providing formal meanings for terms that appear in many different sections. Having these definitions in one central place ensures everyone interprets key terms the same way, which is essential for safety and consistent installations. While other articles may reference defined terms or include some specialized definitions, they do not contain the bulk of the definitions themselves.