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Georeferencing Information for SAR Responders

General Information

United States National Grid (USNG)

The U.S. National Grid (USNG) System is an alpha-numeric reference system that overlays the UTM coordinate system. It is a Federal Geographic Data Committee (FGDC) standard developed to improve public safety, commerce, as well as aid the casual GPS user.
[Link to USNG information page]

Global Area Reference System (GARS)

GARS is an administrative measure used to rapidly and clearly define geographical locations for battle-space coordination, deconfliction and synchronization as well as for large-area search-and-rescue efforts.  GARS is global in scope, providing a common language between the services/combatant commands and simplifying communications.

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Last Modified 12/21/2016