When can the provisions of Rule 137-A through Rule 137-E be disregarded?

The provisions of Rule 137-A through Rule 137-E can be disregarded when the disabled train is near an interlocking and crews can maintain communication. This situation is significant because interlockings are critical safety locations where train movements can be controlled and directed, allowing for safe operations even when a train is disabled. Maintaining communication ensures that the crews involved can coordinate effectively, share necessary information, and make safe decisions that align with operating rules.

In contrast, disregarding the provisions under other circumstances, such as simply being in communication with a dispatcher or when a signal is displayed for an assisting train, may not provide the same level of safety or situational awareness. Communication at an interlocking specifically addresses the complexities of train movements and enhances safety measures, ensuring that coordinated actions are taken when navigating around a disabled train.