Which of the following is NOT a step in the emergency response procedures for an ESS?

• A. Alerting responders
• B. Ensuring safety
• C. Post-incident review
• D. Calibrating instruments after the event

Answer: (D)

In an ESS emergency, the priority is to control the hazard and protect people quickly. The actions that make up the emergency response focus on getting help on scene fast, securing the area, stopping or isolating the dangerous process, and then reviewing the response after the situation is under control. Alerting responders ensures trained personnel arrive to manage the incident, and ensuring safety covers actions like isolating equipment, evacuating if needed, and preserving life and property. After the event is stabilized, a post-incident review collects what happened and identifies improvements for future responses.

Calibrating instruments after the event isn’t part of that immediate response sequence. Calibration is a maintenance or verification task to ensure sensor readings are accurate for future operation, and it typically occurs once the area is safe and the incident is finished. It doesn’t directly help in controlling the current emergency, which is why it isn’t considered an emergency response step.