2024 30 CFR 750.21 – Coal extraction incidental to the extraction of other minerals

2023 30 CFR 750.21 – Coal extraction incidental to the extraction of other minerals

2022 30 CFR 750.21 – Coal extraction incidental to the extraction of other minerals

2021 30 CFR 750.21 – Coal extraction incidental to the extraction of other minerals

2020 30 CFR 750.21 – Coal extraction incidental to the extraction of other minerals

2019 30 CFR 750.21 – Coal extraction incidental to the extraction of other minerals

2016 30 CFR 750.21 – Coal extraction incidental to the extraction of other minerals

2015 30 CFR 750.21 – Coal extraction incidental to the extraction of other minerals

2014 30 CFR 750.21 – Coal extraction incidental to the extraction of other minerals

2010 30 CFR 750.21 – Coal extraction incidental to the extraction of other minerals

2009 30 CFR 750.21 – Coal extraction incidental to the extraction of other minerals