Ohio Rev. Code § 157.08
Extension of co-ordinate control by qualified surveyors for local co-ordinate control densification shall be executed in conformity with standards of accuracy and specifications for first or second-order geodetic surveys as prepared and published by the federal geodetic control committee of the United States department of commerce pursuant to section 157.07 of the Revised Code. Control monumentation for analysis of land boundaries, construction control, engineering design and planning, and photogrammetric survey control for such purposes shall be executed in conformity with the standards of accuracy and specifications for first, second, or third-order geodetic surveys as prepared and published by the federal geodetic control committee in force on the date of such survey.
R.C. §157.08