The bill amends the 1964 PA 9, which establishes systems of coordinates for designating geographic positions within Michigan. It introduces the "state plane coordinates act" and designates the Michigan plane coordinate system, which is based on the National Oceanic and Atmospheric Administration/National Geodetic Survey (NOAA/NGS) standards. Key definitions are updated, including the introduction of terms such as "metadata" and "NSRS" (National Spatial Reference System). The bill also specifies that coordinates must be expressed in meters or international feet, and it mandates that any recording of coordinates must include an estimate of positional tolerance at the 95% confidence level.

Additionally, the bill repeals sections of the original act that are no longer applicable, including the previous Michigan coordinate systems of 1927 and 1983, which are phased out. It emphasizes that the official geodetic reference system for coordinates in Michigan must be defined by the NSRS. The amendments aim to modernize the legal framework governing geographic coordinates, ensuring consistency and accuracy in land surveying and mapping practices across the state.

Statutes affected:
House Introduced Bill: 54.231, 54.232
As Passed by the House: 54.231, 54.232