Definition(s)
Prepared Clay
“Prepared clay” means a commercially processed, finely ground composite extracted from, a Pennsylvanian underclay, Pleistocene glacial clay or other materials as approved by the chief. The chief shall establish standards and conduct tests as necessary to identify approved sources of prepared clay.
Source: Division of Mineral Resources Management – Oil and Gas, Ohio Administrative Code, Chapter 1501:9, January 2012. Regulations