Final answer:
The work center supervisor is responsible for reviewing and approving workcenter maintenance requirements card line outs.
Step-by-step explanation:
The individual responsible for reviewing and approving all workcenter maintenance requirements card line outs for the work center (WC) is typically the work center supervisor. Their role includes ensuring that all maintenance activities are completed according to the established standards and procedures, and they must also verify that safety and operational policies are maintained during the completion of these tasks. It is crucial that this individual has a comprehensive understanding of the maintenance requirements and the authority to make decisions related to the work center operations.