Sec. 3. (a) To more precisely describe the Indiana coordinate system of 1927, the following descriptions by the National Ocean Survey/National Geodetic Survey are adopted:
(1) The "Indiana coordinate system of 1927, east zone" is a transverse Mercator projection of the Clarke spheroid of 1866, having a central meridian 85 degrees 40 minutes west of Greenwich, on which meridian the scale is set at one part in 30,000 too small. The origin of coordinates is at the intersection of the meridian 85 degrees 40 minutes west of Greenwich and the parallel 37 degrees 30 minutes north latitude. This origin is given the coordinates: x = 500,000 feet and y = 0 feet.
(2) The "Indiana coordinate system of 1927, west zone" is a transverse Mercator projection of the Clarke spheroid of 1866, having a central meridian 87 degrees 05 minutes west of Greenwich, on which meridian the scale is set at one part in 30,000 too small. The origin of coordinates is at the intersection of the meridian 87 degrees 05 minutes west of Greenwich and the parallel 37 degrees 30 minutes north latitude. This origin is given the coordinates: x = 500,000 feet and y = 0 feet.
(b) To more precisely describe the Indiana coordinate system of 1983, the following description by the National Ocean Survey/National Geodetic Survey is adopted:
(1) The "Indiana coordinate system of 1983, east zone" is a transverse Mercator projection of the North American Datum of 1983, having a central meridian 85 degrees 40 minutes west of Greenwich, on which meridian the scale is set at one part in 30,000 too small. The origin of coordinates is at the intersection of the meridian 85 degrees 40 minutes west of Greenwich and the parallel 37 degrees 30 minutes north latitude. This origin is given the coordinates: x = 100,000 meters and y = 250,000 meters.
(2) The "Indiana coordinate system of 1983, west zone" is a transverse Mercator projection of the North American Datum of 1983, having a central meridian 87 degrees 05 minutes west of Greenwich, on which meridian the scale is set at one part in 30,000 too small. The origin of coordinates is at the intersection of the meridian 87 degrees 05 minutes west of Greenwich and the parallel 37 degrees 30 minutes north latitude. This origin is given the coordinates: x = 900,000 meters and y = 250,000 meters.
(c) To locate the position of the coordinate systems on the surface of the earth in Indiana, the following shall be used:
(1) The position of the Indiana coordinate system of 1927 shall be determined from horizontal geodetic control points established throughout Indiana in conformity with the standards of accuracy and specifications for first-order and second-order geodetic surveying as prepared and published by the Federal Geodetic Control Committee (FGCC) of the United States Department of Commerce, whose geodetic positions have been rigidly adjusted on the North American Datum of 1927, and whose coordinates have been computed on the Indiana coordinate system of 1927. Standards and specifications of the FGCC (or its successors) in force on the date of the survey apply.
(2) The position of the Indiana coordinate system 1983 shall be determined from horizontal geodetic control points established throughout Indiana in conformity with the standards of accuracy and specifications for first-order and second-order geodetic surveying as prepared and published by the Federal Geodetic Control Committee (FGCC) of the United States Department of Commerce, whose geodetic positions have been rigidly adjusted on the North American Datum of 1983, and whose coordinates have been computed on the Indiana coordinate system of 1983. Standards and specifications of the FGCC (or its successors) in force on the date of the survey apply.
[Pre-2002 Recodification Citation: 32-1-1-5.]
As added by P.L.2-2002, SEC.4.
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