Missouri Code of State Regulations
Title 2 - DEPARTMENT OF AGRICULTURE
Division 90 - Weights, Measures and Consumer Protection
Chapter 62 - First and Second Order Horizontal and Vertical Control
Section 2 CSR 90-62.030 - Accuracy of Horizontal Control

Universal Citation: 2 MO Code of State Regs 90-62.030

Current through Register Vol. 49, No. 18, September 16, 2024

PURPOSE: The division is amending this rule to modernize the language and terms in this rule.

(1) The accuracy of a horizontal control station is classified according to constrained and unconstrained, relative accuracy of the distance between stations, and the positional accuracy of the station relative to the stations held fixed in the adjustment. If the requirements for all three (3) criteria are not satisfied, the station shall fail to qualify for the classification.

(2) First Order Horizontal Control.

(A) The relative accuracy of the distance between directly connected adjacent stations shall be equal to or less than twelve millimeters (12 mm) for distances equal or less than one kilometer (1 km), and ten parts per million (10 ppm) for distances greater than one kilometer (1 km).

(B) The positional accuracy of a station shall be thirty millimeters (30 mm) in urbanareas and sixty millimeters (60 mm) in rural areas.

(3) Second Order Horizontal Control.

(A) The relative accuracy of the distance between directly connected adjacent stations shall be equal to or less than twenty-five millimeters (25 mm) for distances equal to or less than one kilometer (1 km), and twenty parts per million (20 ppm) for distances greater than one kilometer (1 km).

(B) The positional accuracy of a station shall be sixty millimeters (60 mm) in urban areas and one hundred (100) mm in rural areas.

(4) To fully qualify as a first or second order control station, the station must be accepted and published by the Missouri Department of Agriculture or the National Geodetic Survey or its successor organization.

Disclaimer: These regulations may not be the most recent version. Missouri may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.