Which type of calibration involves assessing the performance and accuracy of equipment?

The type of calibration that involves assessing the performance and accuracy of equipment is referred to as full calibration. This process includes thorough testing and evaluation of the equipment to ensure it operates within specified parameters and meets the required standards. Full calibration is essential as it not only verifies the accuracy of the measurements taken by the equipment but also identifies any potential discrepancies or issues that may arise in its performance.

In the context of maintaining high-quality standards and ensuring that equipment can function reliably over time, full calibration provides a comprehensive overview of the equipment's condition. This process typically involves using known standards to compare the output of the equipment, making necessary adjustments, and documenting the results to maintain traceability and compliance with regulations or industry standards.

Other options, such as not required, inactive, or special, do not align with the standard practices for evaluating equipment performance and accuracy in calibration contexts. Hence, full calibration is vital for organizations looking to ensure precision in their measurements and the reliability of their equipment.