40 CFR § 147.600 State, Tribal, and EPA-Administered Underground Injection Control Programs§ 147.600 State-administered program. [Reserved]Current through Aug 22, 2025 · Read all of Part 147⚠ 2 pending changes to Part 147Colorado Underground Injection Control (UIC) Program; Class VI PrimacyRule · takes effect Nov 12, 2026 · Environmental Protection AgencyColorado Underground Injection Control Program; Class VI PrimacyProposed Rule · Environmental Protection Agency