The authors provide an overview of the Class VI permit application under the federal Underground Injection Control ("UIC") program, the status of current and pending Class VI applications, and the status of state primacy for UIC programs.

Industry has recently expressed significant interest in long-term underground storage of carbon dioxide ("CO2") in deep subsurface geologic formations—a process that generally requires an Environmental Protection Agency ("EPA") Class VI permit under the federal Underground Injection Control ("UIC") program.

This article provides an overview of the Class VI permit application, the status of current and pending Class VI applications, and the status of state primacy for UIC programs.

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Originally published in LexisNexis

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