Response is defined as actions taken immediately before, during and directly after an emergency occurs to save lives, minimize damage to property and enhance the effectiveness of recovery.

Response to an event is the function of law enforcement, emergency medical services, fire-rescue departments and first responders. When a large-scale event has occurred it is important that the response be coordinated. This generally means activating the City of Chicago Joint Operations Center to assure central coordination.

Public official alerting, shelter and evacuation, search and rescue and resource mobilization are part of the response mode.

Respond - group of emergency workers helping an injured person

Click on the links below for more information about Response!

Disease Outbreak and Biological Threats

Evacuations and Shelter In Place


High Rise Building Safety

Nuclear Threat

Power Outages


Transit Safety

Weather Extremes

Supporting Information Facts

Additional Information

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