Authority: IC 25-21.5-2-14

Affected: IC 25-21.5

Sec. 7. (a) The purpose of this section is to prescribe precision and accuracy standards to be used by a land surveyor in conducting original and retracement surveys and route surveys.

(b) The land surveyor shall select the appropriate equipment and methods and use trained personnel to assure that the acceptable relative positional accuracy specified in this section is not exceeded.

(c) The degree of precision and accuracy necessary for a survey shall be based upon the intended use of the real estate. If the client does not provide information regarding the intended use, the classification of the survey shall be based on the current use of the real estate.

(d) Classifications of surveys are as follows:

1. (1) Urban surveys. Urban surveys are performed on land lying within or contiguous with a city or town, except for single family residential lots. Urban surveys also include:

   1. (A) commercial and industrial properties;
   2. (B) condominiums;
   3. (C) townhouses;
   4. (D) apartments; and
   5. (E) other multiunit developments;
2. regardless of geographic location.
3. (2) Suburban surveys. Suburban surveys are performed on residential subdivisions lots. Surveys of single family residential lots shall be suburban surveys even if the lot is located in an urban or a rural area.
4. (3) Rural surveys. Rural surveys are performed on real estate lying in rural areas that does not otherwise meet the definition of an urban or suburban survey.

(e) The acceptable relative positional accuracies for each classification of survey are as follows:

1. (1) Urban surveys: 0.07 feet (21 millimeters) plus 50 parts per million.
2. (2) Suburban surveys: 0.13 feet (40 millimeters) plus 100 parts per million.
3. (3) Rural surveys: 0.26 feet (79 millimeters) plus 200 parts per million.

(f) Relative positional accuracy may be tested by:

1. (1) comparing the relative location of points in a survey as measured by an independent survey of higher accuracy; or
2. (2) the results of a minimally constrained, correctly weighted least square adjustment of the survey.

(State Board of Registration for Professional Surveyors; 865 IAC 1-12-7; filed Jun 21, 1988, 4:05 p.m.: 11 IR 3910; filed Jul 17, 1991, 4:30 p.m.: 14 IR 2242; readopted filed May 22, 2001, 9:55 a.m.: 24 IR 3237; filed Jan 26, 2004, 11:00 a.m.: 27 IR 1884; filed May 4, 2006, 1:25 p.m.: 29 IR 3010; readopted filed Nov 9, 2012, 11:26 a.m.: 20121205-IR-865120390RFA; readopted filed Nov 29, 2018, 10:35 a.m.: 20181226-IR-865180404RFA; readopted filed May 30, 2024, 9:42 a.m.: 20240626-IR-865230820RFA) NOTE: 864 IAC 1.1-13-7 was renumbered by Legislative Services Agency as 865 IAC 1-12-7.