2023 Ohio Code 1561.01 – Division of mineral resources management – mine and quarry definitions

2020 Ohio Code 1561.01 – Division of mineral resources management – mine and quarry definitions

2018 Ohio Code 1561.01 – Division of mineral resources management – mine and quarry definitions

2016 Ohio Code 1561.01 – Division of mineral resources management – mine and quarry definitions

2015 Ohio Code 1561.01 – Division of mineral resources management – mine and quarry definitions

2014 Ohio Code 1561.01 – Division of mineral resources management – mine and quarry definitions

2013 Ohio Code 1561.01 – Division of mineral resources management – mine and quarry definitions

2009 Ohio Code 1561.01 – Division of mineral resources management – mine and quarry definitions