National IA Frequency Zones International Public

Polygons delineate international initial attack frequency zones which will be used if and only if need arises for international coordination with the United States. No internationally recognized Air-to-Air or Air-to-Ground frequencies used by aircraft during incidents currently exist for these areas. These polygons represent areas for use in coordination between the United States and other countries in the event of a future wildfire or other emergency with the potential to impact international boundaries. Data is coordinated by the Communications Duty Officer at the National Interagency Fire Center (NIFC) in Boise, ID. The data contains no actual frequencies. Note: overlapping polygons would exist between federal and international initial attack frequency zones if international initial attack frequency zones were called into use.

本数据集以多边形面划定国际初始扑救通信频率区域，仅在需与美国开展国际协同的必要场景下启用。目前上述区域尚无经国际认可的、航空器在应急处置过程中使用的空对空（Air-to-Air）或空对地（Air-to-Ground）通信频率。此类多边形面所代表的区域，用于未来可能波及国际边界的野火或其他紧急事件中，美国与其他国家之间的协同联动工作。本数据集由位于爱达荷州博伊西市的美国国家跨部门消防中心（National Interagency Fire Center, NIFC）的通信值班官员统筹协调。本数据集未收录实际可用的通信频率。备注：若启用国际初始扑救通信频率区域，则联邦与国际初始扑救通信频率区域之间将出现多边形面重叠的情况。