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The regulations at 40 CFR part 147 codify each State's Underground Injection Control (UIC) program description and incorporates by reference the rules and regulations that the respective primacy state will implement. This includes codifying programs upon which EPA directly implements. This update is necessary to ensure that the CFR accurately reflects current approved State UIC programs and that requirements of those programs are federally enforceable. EPA regional offices will be submitting State revision packages as they are completed. Part 147 will then be updated in several stages. This is the first stage. This effort should have no impact on the regulated community because EPA will merely be incorporating by reference elements of already approved State programs.