40 CFR § 147.2909
Authorization of existing wells by rule
June 9, 2020
All existing Class II injection wells (wells authorized by BIA and constructed or completed on or before the effective date of the Osage UIC program) are hereby authorized. Owners or operators of wells authorized by rule must comply with the provisions of §§147.2903, 147.2905, 147.2907, and 147.2910 through 147.2915.