1. (a) The plane coordinates of a point to be used in expressing the geographic position or location of the point in the appropriate zone of the INPCS must consist of two (2) distances, expressed in feet and decimals of a foot or meters and decimals of a meter. When a value is expressed in feet, it must be expressed in international feet (1 foot = 0.3048 meters).
2. (b) The distance described in subsection (a) that gives the distance east of the Y axis is the "east or x-coordinate". The distance described in subsection (a) that gives the distance north of the X axis is the "north or y-coordinate".
3. (c) The Y axis of any zone must be parallel with the central median of that zone. The X axis of any zone must be at right angles to the central median of that zone.

As added by P.L.147-2026, SEC.18.