2023 Washington Code 78.44.131 – Reclamation specifics — Basic objective — Modifications for metals mining and milling operations — Timeline

2022 Washington Code 78.44.131 – Reclamation specifics–Basic objective–Modifications for metals mining and milling operations–Timeline

2020 Washington Code 78.44.131 – Reclamation specifics — Basic objective — Modifications for metals mining and milling operations — Timeline

2019 Washington Code 78.44.131

2018 Washington Code 78.44.131 – Reclamation specifics — Basic objective — Modifications for metals mining and milling operations — Timeline

2016 Washington Code 78.44.131 – Reclamation specifics–Basic objective–Modifications for metals mining and milling operations–Timeline

2015 Washington Code 78.44.131 – Reclamation specifics–Basic objective–Modifications for metals mining and milling operations–Timeline

2014 Washington Code 78.44.131 – Reclamation specifics — Basic objective — Modifications for metals mining and milling operations — Timeline

2013 Washington Code 78.44.131 – Reclamation specifics — Basic objective — Modifications for metals mining and milling operations — Timeline

2009 Washington Code 78.44.131 – Reclamation specifics — Basic objective — Modifications for metals mining and milling operations — Timeline