What is required to be delivered to the authority having jurisdiction before energization?

The correct answer highlights the importance of ensuring that electrical installations meet safety and performance standards before they are energized. A test report containing the results of necessary tests is critical as it provides evidence that the installation has been checked and conforms to applicable codes and standards. This report typically covers various aspects such as insulation resistance, continuity testing, and ground fault testing, ensuring that any potential issues are identified and addressed prior to allowing electrical power to flow through the system. Providing this documentation is a standard procedure to ensure safety and compliance, establishing a basis for the authority having jurisdiction to verify the installation's readiness for energization.

The other options, while important in various contexts, do not specifically address the immediate requirement for verification of safety and performance standards prior to energization. A completed installation plan and drawing might be essential for project approval and planning, while a list of materials used might be useful for inventory and documentation purposes. An application for permit approval is important for legal compliance and initiation of the project but does not directly confirm that the installation is ready to be energized. Overall, the necessity for a test report emphasizes the priority of safety and adherence to the National Electrical Code requirements before the power is turned on.