Journeyman Electrician Practice Exam

The use of the term "may not" is clearly prohibited in the National Electrical Code (NEC®) terminology. This prohibition exists because the NEC® aims to create a uniform approach to electrical safety and compliance, minimizing ambiguity in its language. By using definitive and actionable terms, the NEC® ensures that provisions are clearly understood, with specific directives regarding what is permissible or impermissible in electrical installations.

Using "may not" implies a level of uncertainty or permission that contradicts the prescriptive nature of the code, which instead specifies requirements that must be followed without room for interpretation. This clarity helps in enforcing safety standards and ensuring that practitioners adhere strictly to the code's guidelines, eliminating any confusion about compliance requirements.