What must railroad operating employees not do while operating the controls of a moving locomotive?

Using electronic devices for any purpose while operating the controls of a moving locomotive is a critical safety regulation. This rule is put in place to ensure that the attention of the operating employees remains fully focused on the task of operating the train safely. Distractions from electronic devices can significantly impair the ability to react quickly to any changes in the environment or situations that may arise during operation.

The prohibition of using electronic devices underscores the importance of maintaining situational awareness and preventing accidents or mishaps that could result from divided attention. In a high-stakes environment such as railroad operations, where the safety of the crew, passengers, and cargo is paramount, adhering to this guideline is crucial for safe train management.

The other activities, while they may not be ideal for maintaining focus and safety, do not pose the same level of immediate risk as the distraction caused by electronic devices. Engaging in personal conversations or handling cargo, while discouraged, does not inherently compromise operational safety in the same way that using electronic devices does. Adjusting train signals typically falls within the realm of operational duties and would be managed by properly trained personnel in adherence to safety protocols.