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

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

Answer: (C)

Emphasis during an ESS emergency is on immediate safety and control of the hazard. Alerting responders gets help on scene quickly, so the situation can be managed without delay. Ensuring safety means protecting occupants and responders—evacuating if needed, securing the area, and controlling ignition sources and exposures. Post-incident review is done after the situation is under control to learn from what happened and improve procedures for the future. Calibrating instruments during the emergency isn’t part of the response actions because calibration is a careful, non-urgent maintenance task that requires stable conditions and time. During an emergency, readings can be unstable or misleading, and spending time to recalibrate can distract from essential actions like stopping the release, isolating the system, and ensuring people are safe. So calibrating instruments during the emergency is not a step in the emergency response.