Which of the following is a required action for inspections post-emergency brake application?

Inspecting for derailed cars and load shifts is a crucial action following an emergency brake application because it directly pertains to ensuring the safety and operational integrity of the train and its cargo. When the emergency brakes are applied, it generates significant forces that can lead to instability in the train's configuration. This instability may result in cars being derailed or loads shifting dangerously, which could pose immediate risks to the crew, passengers, infrastructure, and surrounding areas.

This inspection helps in identifying any immediate hazards that need to be addressed before further actions are taken, such as resuming operations or initiating repairs. It is a fundamental safety measure that allows dispatchers and crews to assess the situation thoroughly before determining the next steps.

The other options, while relevant to broader emergency response protocols, do not specifically address the immediate inspection needs that arise post-emergency braking. Collecting passenger reports, coordinating a response team, and submitting incident reports are important but occur as part of the response strategy following the initial safety assessment.