Emergency: A present or imminent event that requires prompt coordination of actions concerning persons or property to protect the health, safety or welfare of people, or to limit damage to property or the environment. 

Emergency management: The management of emergencies concerning all-hazards, including all activities and risk management measures related to prevention and mitigation, preparedness, response and recovery. 

Emergency Management/Response Personnel: Includes Federal, Provincial, Territorial, and local governments, First Nations, private-sector organizations, critical infrastructure owners and operators, nongovernmental organizations, and all other organizations and individuals who assume an emergency management role. Also known as emergency responders. 

Emergency Medical Assistant (EMA):  A health-care specialists licensed under the Health Emergency Act with particular skills, knowledge and certification in pre-hospital emergency care and transportation.

Emergency Coordination Center (ECC): The physical location at which the coordination of information and resources to support incident management (on-scene operations) activities normally takes place. An ECC may be a temporary facility or may be located in a more central or permanently established facility, perhaps at a higher level of organization within a jurisdiction. ECCs may be organized by major functional disciplines (e.g., fire, law enforcement, and medical services), by jurisdiction or some combination thereof. Sometimes referred to as Emergency Operations Centres (EOC). 

Emergency Operations Centre (EOC):  A designated facility established by an agency or jurisdiction to coordinate the overall agency or jurisdictional response and support to an emergency response.  (See Site Support Level).

Emergency Operations Plan: The ongoing plan maintained by various jurisdictional levels for responding to a wide variety of potential hazards. 

Emergency Program Coordinator:  The individual within the local authority that has coordination responsibility for jurisdictional emergency management.

Emergency Response Plan:  The plan that each jurisdiction has and maintains for responding to incidents based on hazard and risk analysis.

Emergency Public Information: Information that is disseminated primarily in anticipation of an emergency or during an emergency. In addition to providing situational information to the public, it also frequently provides directive actions required to be taken by the general public. 

Engine:  Specialized truck on which is mounted a water tank, pump, hose and supplementary equipment. It is used to bring a self contained water source to a fire with the capability of pumping water through a hose line directly from the tank to a fire.

Engine - Type 3: An engine equipped with a 150 gallons per minute pump at 250 psi, capacity over 500 gallons and 500 ft of 1.5 inch hose.

Engine - Type 4: An engine equipped with a 50 gallons per minute pump at 100 psi, capacity over 750 gallons and 300 ft of 1.5 inch hose.

Engine - Type 5: An engine equipped with a 50 gallons per minute pump at 100 psi, capacity 400 to 700 gallons and 300 ft of 1.5 inch hose.

Engine - Type 6: An engine equipped with a 30 gallons per minute pump at 100 psi, capacity 150 to 400 gallons and 300 ft of 1.5 inch hose.

Engine - Type 7: An engine equipped with a 10 gallons per minute pump at 100 psi, capacity 50 to 200 gallons and 200 ft of 1.5 inch hose.

Engine Boss (ENGB): The person that leads a single fire engine and attached personnel and is responsible for their safety on wildland and prescribed fire incidents. Engine operator (ENOP) The person responsible for the safe and efficient use of a wildland fire engine on an incident.

Equipment Time Recorder (EQTR): The Equipment Time Recorder is responsible for tracking and posting equipment time on an incident.

Evacuation: Organized, phased, and supervised withdrawal, dispersal, or removal of civilians from dangerous or potentially dangerous areas, and their reception and care in safe areas. 

Event:  A planned, non-emergency activity.  ICS can be used as the management system for a wide range of events (e.g., parades, concerts, or sporting events).