Illinois Coordinate System Act

This act adopts an official statewide plane coordinate system for expressing the position of points on the earth's surface, defining the system itself and the zone names to be used when land is described by reference to it. It prescribes the standards a description based on the system must meet before it may be recorded, allows those standards to be adapted to local conditions, controls how the system's name may be used on maps, and makes clear that no one is obliged to describe land by coordinates rather than by conventional means. Administration rests with the state's geodetic survey agency, which is charged with maintaining the system and with clarifying county boundaries — determinations subject to contested case review — and state mapping products must be made compatible with the system under standards and programs the agency establishes.

Editorial summary generated from the text of this act. It is not part of the statute — read the sections below for the operative language.