2023 Ohio Code 1561.17 – Qualifications of foreperson of mine or nongaseous mines – recertification

2020 Ohio Code 1561.17 – Qualifications of foreperson of mine or nongaseous mines – recertification

2018 Ohio Code 1561.17 – Qualifications of foreperson of mine or nongaseous mines – recertification

2016 Ohio Code 1561.17 – Qualifications of foreperson of mine or nongaseous mines – recertification

2015 Ohio Code 1561.17 – Qualifications of foreperson of mine or nongaseous mines – recertification

2014 Ohio Code 1561.17 – Qualifications of foreperson of mine or nongaseous mines – recertification

2013 Ohio Code 1561.17 – Qualifications of foreperson of mine or nongaseous mines – recertification

2009 Ohio Code 1561.17 – Qualifications of foreperson of mine or nongaseous mines – recertification