Which statement is true regarding NEC proposals?

The statement about proper substantiation being key for successful proposals is accurate because proposals to the National Electrical Code (NEC) must be thoroughly justified and supported by evidence to be considered for acceptance. When stakeholders submit proposals for changes or additions to the NEC, they need to provide a comprehensive explanation of the rationale behind the proposal. This may include technical data, safety considerations, industry practices, or historical context that demonstrates the necessity and benefits of the proposed change. The process is rigorous because the NEC aims to ensure that electrical safety standards are maintained, so substantiation is critical in convincing the code-making panels that the proposal warrants inclusion in the code. Without sufficient validation, proposals are less likely to gain traction or approval.