The BRONZE area is the area of immediate hazard and casualty rescue

 The boundary of the BRONZE area is the INNER CORDON

 Each service may designate a BRONZE COMMANDER

 There can be more than one BRONZE area (and set of bronze commanders) within an incident

 The SILVER area is the entire scene

 The boundary of the SILVER area is the OUTER CORDON

 Each service will provide a SILVER COMMANDER

 There is only one SILVER area for an incident (exception is an incident over a wide area, for example an earthquake, with multiple “major incidents”)

 GOLD represents the highest level of command for the incident

 GOLD is remote from the scene

 GOLD may be identified by a local authority, regional, county, state or national boundary