(a) The systems of plane coordinates which have been established by the National Ocean Survey/National Geodetic Survey, formerly the United States Coast and Geodetic Survey, or its successors for defining and stating the geographic positions or locations of points on the surface of the earth within the State of Georgia are hereafter to be known and designated as the "Georgia Coordinate System" and the "Georgia Coordinate System of 1985."

(b) For the purpose of the use of these systems, the state is divided into an "East Zone" and a "West Zone":

(1) The area now included in the following counties shall constitute the East Zone: Appling, Atkinson, Bacon, Baldwin, Brantley, Bryan, Bulloch, Burke, Camden, Candler, Charlton, Chatham, Clinch, Coffee, Columbia, Dodge, Echols, Effingham, Elbert, Emanuel, Evans, Franklin, Glascock, Glynn, Greene, Hancock, Hart, Jeff Davis, Jefferson, Jenkins, Johnson, Laurens, Liberty, Lincoln, Long, McDuffie, McIntosh, Madison, Montgomery, Oglethorpe, Pierce, Richmond, Screven, Stephens, Taliaferro, Tattnall, Telfair, Toombs, Treutlen, Ware, Warren, Washington, Wayne, Wheeler, Wilkes, and Wilkinson; and

(2) The area now included in the following counties shall constitute the West Zone: Baker, Banks, Barrow, Bartow, Ben Hill, Berrien, Bibb, Bleckley, Brooks, Butts, Calhoun, Carroll, Catoosa, Chattahoochee, Chattooga, Cherokee, Clark, Clay, Clayton, Cobb, Colquitt, Cook, Coweta, Crawford, Crisp, Dade, Dawson, Decatur, DeKalb, Dooly, Dougherty, Douglas, Early, Fannin, Fayette, Floyd, Forsyth, Fulton, Gilmer, Gordon, Grady, Gwinnett, Habersham, Hall, Haralson, Harris, Heard, Henry, Houston, Irwin, Jackson, Jasper, Jones, Lamar, Lanier, Lee, Lowndes, Lumpkin, Macon, Marion, Meriwether, Miller, Mitchell, Monroe, Morgan, Murray, Muscogee, Newton, Oconee, Paulding, Peach, Pickens, Pike, Polk, Pulaski, Putnam, Quitman, Rabun, Randolph, Rockdale, Schley, Seminole, Spalding, Stewart, Sumter, Talbot, Taylor, Terrell, Thomas, Tift, Towns, Troup, Turner, Twiggs, Union, Upson, Walker, Walton, Webster, White, Whitfield, Wilcox, and Worth.