(a) For purposes of more precisely defining the Tennessee Coordinate System of 1927, the following definition by the United States coast and geodetic survey, now the national ocean survey/national geodetic survey, is adopted:
(b) For purposes of more precisely defining the Tennessee Coordinate System of 1983, the following definition by the national ocean survey/national geodetic survey is adopted:
(c) The definition of the “U.S. Survey Foot” is exactly 1,200/3,937 meters.