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The regulations at 40 CFR part 147 codify each State's Underground Injection Control (UIC) program description and incorporate by reference the rules and regulations that the respective primacy State will implement. This includes codifying programs, which EPA directly implements. Codifying State programs in 40 CFR part 147 provides notice to the public and regulated communities of the State program requirements and allows the EPA to bring a direct enforcement action against a regulated entity if the State asks the EPA to intervene or if the State fails to bring an enforcement action. 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 action should have no impact on the regulated community because the EPA will merely be incorporating by reference elements of already approved State programs.