What condition must be met before an RWIC can release their working limits if an EIC's work group is present?

The correct answer is that the RWIC can release their working limits once the EIC has reported clear of the working limits. This condition is crucial because it ensures that all personnel, including those from the EIC's work group, have safely exited the area before any working limits are lifted. The communication between the RWIC and the EIC is essential for maintaining safety and minimizing the risks associated with transitioning from a work zone back to regular operations. If the EIC has confirmed that they and their crew are clear, it indicates that the area is safe for the RWIC to take action regarding the working limits. This process helps protect all workers and align operations smoothly after work is complete.

The other conditions, while important in different contexts, do not specifically address the critical safety communication necessary for releasing working limits under the presence of the EIC's crew.