News & Analysis as of

Permits Air Pollution Final Rules

Williams Mullen

Everything Old is New Again: Actual Emissions are No Longer Enforceable Under NSR Permitting

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EPA is withdrawing the proposed rule titled ‘‘Prevention of Significant Deterioration (PSD) and Nonattainment New Source Review (NNSR): Regulations Related to Project Emissions Accounting’’ published in the Federal Register...more

Holland & Knight LLP

EPA Issues Final Methane Regulations for New and Existing Sources

Holland & Knight LLP on

The U.S. Environmental Protection Agency (EPA) announced its final rule on Dec. 2, 2023, to sharply reduce emissions of methane and other air pollution from oil and natural gas operations. The final action, which is more than...more

Williams Mullen

Court to Consider EPA Rule Eliminating Exemption for Excess Emissions During SSM

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A 2015 EPA rulemaking required 36 states to revise their State Implementation Plans (“SIPs”) to eliminate provisions exempting air emission exceedances during periods of startup, shutdown, or malfunction (the “SSM SIP Call...more

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