PURPOSE: This rule sets forth the requirements for referencing land boundary corners to the Missouri Coordinate System of 1983. (1) When the professional land surveyor is specifically requested or required to reference land boundary corners to the Missouri Coordinate System of 1983, the professional land surveyor shall comply with the following requirements:

1. (A) The position of the corner shall be based upon a geodetic control station having a horizontal accuracy of second order (as defined in 20 CSR 2030-18.020) or higher order;
2. (B) The survey connecting the corner to the geodetic control station shall meet the accuracy standards for property boundary surveys set forth in this chapter; and
3. (C) The plat or other publication of results shall identify the geodetic control station(s) that were used to determine the position of the corner(s), along with a list of the coordinates of those control station(s); the appropriate adjustment date or realization designation on the North American Datum of 1983, along with the epoch date when applicable; a brief statement of the method used to obtain those positions; and the grid factor used. AUTHORITY: sections 60.510(7), 60.550, and 448.2-109, RSMo 2016.* Material in this rule was originally covered in 10 CSR 30- 2.050. Original rule filed Dec. 1, 2016, effective June 30, 2017. *Original authority: 60.510, RSMo 1969, amended 2012, 2013; 60.550, RSMo 1969, amended 2013; and 448.2-109, RSMo 1983, amended 1988.