2024 Ohio Code 1567.70 – Plan for recovery of longwall roof support – approval by chief

2023 Ohio Code 1567.70 – Plan for recovery of longwall roof support – approval by chief

2020 Ohio Code 1567.70 – Plan for recovery of longwall roof support – approval by chief

2018 Ohio Code 1567.70 – Plan for recovery of longwall roof support – approval by chief

2016 Ohio Code 1567.70 – Plan for recovery of longwall roof support – approval by chief

2015 Ohio Code 1567.70 – Plan for recovery of longwall roof support – approval by chief

2014 Ohio Code 1567.70 – Plan for recovery of longwall roof support – approval by chief

2013 Ohio Code 1567.70 – Plan for recovery of longwall roof support – approval by chief

2009 Ohio Code 1567.70 – Plan for recovery of longwall roof support – approval by chief