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

• A. Identifying the emergency
• B. Executing the response plan
• C. Calibrating sensors
• D. Alerting responders

Answer: (C)

Emergency response procedures for an ESS focus on quickly recognizing the event, carrying out the predefined actions to control the situation, and summoning help. Identifying the emergency triggers the response; executing the response plan puts containment and protective actions into motion; alerting responders ensures external teams arrive and coordinate. Calibrating sensors, meanwhile, is a maintenance activity aimed at ensuring measurement accuracy between incidents. It isn’t performed as part of the immediate response to an emergency, and attempting to calibrate during an incident could slow critical actions. So calibrating sensors does not belong in the emergency response steps.