PURPOSE: This rule defines the various technical and legal terms used in this chapter. (1) Block: Block means a group of lots existing within well-defined and fixed boundaries, usually being surrounded by streets or physical barriers, and usually having an assigned number, name, letter, or other identifier through which it may be identified.

1. (2) Controlling corners: Controlling corners are the corners that determine the location of the record title boundary.
2. (3) Exterior corners: Exterior corners of a parcel are the corners that define the shape and size of the parcel.
3. (4) Property description: A Property description is a description of real property by government survey, metes and bounds, or lot numbers of record. The description must be complete enough so a particular parcel of land can be located and identified.
4. (5) Linear error of closure: Linear error of closure is the square root of the sum of the squares of the error in north coordinates (Y) and in east coordinates (X).
5. (6) Material variations: Material variations are those differences between surveyed lines and lines of possession or measurements called for in the record source of the property being surveyed that are, in the professional judgement of the surveyor, substantial and important to the location of the subject survey.
6. (7) Physical monument: The term physical monument refers to both natural and artificial physical objects which are accepted and used to mark boundaries and corners.

7. (8) Property boundary surveys:

   1. (A) A condominium survey is a survey executed to create and define condominium property in accordance with Chapter 448, RSMo.
   2. (B) An original survey is a survey which creates a new parcel out of a large parent tract, for the purpose of conveying the new parcel. Boundary adjustment plats, consolidation plats, riparian plats, lot splits, and minor subdivisions are examples of original surveys.
   3. (C) A resurvey is a survey executed to remark, reestablish, restore or delineate the boundary line or corners of a parcel previously created by a deed, survey or subdivision.
   4. (D) A subdivision survey is the partitioning of land into two (2) or more parcels by platting the divisions of land in accordance with Chapter 445, RSMo and per the appro- 10 CSR 30-2

priate platting procedures, and from which parcels are then sold by reference to the plat of record.

1. (9) Radial survey measurement tolerance: Radial survey measurement tolerance is the computed expected relative accuracy of any distance determined by radial surveying methods. It is computed using an analysis of component distance and direction errors.
2. (10) Radial survey method: Radial survey method is the determination of the coordinate values of points by measuring directions and distance from a central point as opposed to determination of the coordinates of points by traverse. The determination of coordinates by “side shots” from a closed traverse is not considered a radial surveying method.
3. (11) Record title boundaries: Record title boundaries are the boundaries of the real estate described in the title of record.
4. (12) Relative position tolerance: Relative position tolerance is the relative accuracy between all directly connected pairs of points in a survey. In practice it is computed for a sampling of pairs of points using either an analysis of component distance and direction errors or from a minimally constrained, correctly weighted least squares adjustment.
5. (13) Title of record: Title of record is a title to real estate, evidenced and provable by one
6. (1) or more conveyances or other instruments all of which are duly entered on the public records.
7. (14) Traverse closure: Traverse closure is the linear error of closure of the traverse computed either from an analysis of the component distance and direction errors or from the actual traverse measurements.
8. (15) United States Public Land Survey Corners: United States Public Land Survey Corners are those points that determine the boundaries of the various subdivisions represented on the official government plat such as the township corner, the section corner, the quarter-section corner, blank quarter-section corners, center of section, fractional-section corners, grant corner and meander corner.

AUTHORITY: sections 60.510(7), 60.550 and 448.2-109, RSMo 2000.* Original rule filed May 3, 1994, effective Dec. 30, 1994. Amended: Filed March 20, 2003, effective Oct. 30, 2003. *Original authority: 60.510(7), RSMo 1969; 60.550, RSMo 1969; and 448.2-109, RSMo 1983, amended 1988.