2024 Ohio Code 1563.19 – Slopes and mechanical haulageways – refuge holes

2023 Ohio Code 1563.19 – Slopes and mechanical haulageways – refuge holes

2020 Ohio Code 1563.19 – Slopes and mechanical haulageways – refuge holes

2018 Ohio Code 1563.19 – Slopes and mechanical haulageways – refuge holes

2016 Ohio Code 1563.19 – Slopes and mechanical haulageways – refuge holes

2015 Ohio Code 1563.19 – Slopes and mechanical haulageways – refuge holes

2014 Ohio Code 1563.19 – Slopes and mechanical haulageways – refuge holes

2013 Ohio Code 1563.19 – Slopes and mechanical haulageways – refuge holes

2009 Ohio Code 1563.19 – Slopes and mechanical haulageways – refuge holes