2024 40 CFR 147.3200 – Fort Peck Indian Reservation: Assiniboine & Sioux Tribes–Class II wells

2023 40 CFR 147.3200 – Fort Peck Indian Reservation: Assiniboine & Sioux Tribes – Class II wells

2022 40 CFR 147.3200 – Fort Peck Indian Reservation: Assiniboine & Sioux Tribes – Class II wells

2021 40 CFR 147.3200 – Fort Peck Indian Reservation: Assiniboine & Sioux Tribes – Class II wells

2020 40 CFR 147.3200 – Fort Peck Indian Reservation: Assiniboine & Sioux Tribes–Class II wells

2019 40 CFR 147.3200 – Fort Peck Indian Reservation: Assiniboine & Sioux Tribes–Class II wells

2016 40 CFR 147.3200 – Fort Peck Indian Reservation: Assiniboine & Sioux Tribes–Class II wells

2015 40 CFR 147.3200 – Fort Peck Indian Reservation: Assiniboine & Sioux Tribes–Class II wells

2014 40 CFR 147.3200 – Fort Peck Indian Reservation: Assiniboine & Sioux Tribes-Class II wells