"The Staging Area Manager is directly responsible to Operations. If Operations has not been staffed, Staging reports to Command. The Staging Area Manager is responsible for the coordination, support and distribution of all incoming resources. Staging is a location where resources ready for immediate assignment are placed temporarily. […] Level 1 Staging is used to control the first alarm or initially dispatched units. Have you ever responded with three to six pieces of apparatus to find a pot of food burning on a stove? All apparatus park right in front of the dwelling. Level 2 Staging is a location to which all second or greater alarm or mutual-aid companies report. The Staging location should be announced when the additional resources are requested/dispatched. This is the cue to establish the Staging Area Manager function. The Staging Area Manager reports to the Incident Commander or Operations, if it has been established."
Coffee Break Training - Command and Control Series No. CC-2013-10
United States Fire Administration: http://www.usfa.fema.gov/