Laws & Regulations
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Response to Four Petitions for Reconsideration
EPA is partially denying four petitions for reconsideration and associated requests for administrative stay of the Federal "Good Neighbor Plan" for the 2015 Ozone NAAQS.
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Important Dates: Good Neighbor Plan NOx Ozone Season Group 3 Trading Program
Revised CSAPR Update 2021 dates
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Proposed State Budgets under the Revised Cross-State Air Pollution Rule Update
Revised Cross-State Air Pollution Rule Update Proposed State Budgets
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2010 SO2 Allowance Auction
Learn the results of EPA's 2010 Acid Rain Program sulfur dioxide (SO2) allowance auction results.
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2006 SO2 Allowance Auction
Learn the results of EPA's 2006 Acid Rain Program sulfur dioxide (SO2) allowance auction results.
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2012 SO2 Allowance Auction
Learn the results of EPA's 2012 Acid Rain Program sulfur dioxide (SO2) allowance auction results.
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2011 SO2 Allowance Auction
Learn the results of EPA's 2011 Acid Rain Program sulfur dioxide (SO2) allowance auction results.
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2009 SO2 Allowance Auction
Learn the results of EPA's 2009 Acid Rain Program sulfur dioxide (SO2) allowance auction results.
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2008 SO2 Allowance Auction
Learn the results of EPA's 2008 Acid Rain Program sulfur dioxide (SO2) allowance auction results.
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2007 SO2 Allowance Auction
Learn the results of EPA's 2007 Acid Rain Program sulfur dioxide (SO2) allowance auction results.
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2005 SO2 Allowance Auction
Learn the results of EPA's 2005 Acid Rain Program sulfur dioxide (SO2) allowance auction results.
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2002 SO2 Allowance Auction
Learn the results of EPA's 2002 Acid Rain Program sulfur dioxide (SO2) allowance auction results.
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2001 SO2 Allowance Auction
Learn the results of EPA's 2001 Acid Rain Program sulfur dioxide (SO2) allowance auction results.
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1999 SO2 Allowance Auction
Learn the results of EPA's 1999 Acid Rain Program sulfur dioxide (SO2) allowance auction results.
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1998 SO2 Allowance Auction
Learn the results of EPA's 1998 Acid Rain Program sulfur dioxide (SO2) allowance auction results
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1997 SO2 Allowance Auction
Learn the results of EPA's 1997 Acid Rain Program sulfur dioxide (SO2) allowance auction results.
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1996 SO2 Allowance Auction
Learn the results of EPA's 1996 Acid Rain Program sulfur dioxide (SO2) allowance auction results.
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1995 SO2 Allowance Auction
Learn the results of EPA's 1995 Acid Rain Program sulfur dioxide (SO2) allowance auction results.
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1993 SO2 Allowance Auction
Learn the results of EPA's 1993 Acid Rain Program sulfur dioxide (SO2) allowance auction results.
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2015 SO2 Allowance Auction
Learn the results of EPA's 2014 Acid Rain Program sulfur dioxide (SO2) allowance auction results.