The answer is The National Interagency Coordination Center (NICC)
The National Interagency Coordination Center is the focal point <span>for the mobilization of resources for wildland fire and other incidents throughout the country. </span>
It has a wild-fire suppression system based on local area support, 11 geographic areas and nation wide.
If other local agencies have exhausted all of their resources and require help, they contact the NICC.