WGS 84 (World Geodetic System 1984)

WGS 84 (World Geodetic System 1984) is the reference coordinate system used by the Global Positioning Systems and in cartography and navigation.


 * NENA-STA-006, NENA Standard for NG9-1-1 GIS Data Model
 * NENA-STA-010, Detailed Functional and Interface Standards for the NENA i3 Solution