Notice of Settlement Extension: National Ambient Air Quality Standard for Sulfur Oxides Remand

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In 1998, the United States Court of Appeals for the District of Columbia Circuit remanded EPA's decision to not revise the National Ambient Air Quality Standard for sulfur oxides for further explanation by EPA. American Lung Association v. Browner, 134 F. 3d 388 (D.C. Cir. 1998). Subsequently, the American Lung Association (ALA) and EPA agreed that EPA would propose a response to the court's remand by summer, 1999 and that EPA would finalize its response to the remand by the end of the year 2000. In exchange, ALA agreed to not file a petition for rehearing en banc with the court and to not pursue any mandatory duty or unreasonable delay claims regarding the remand prior to January, 2001. In September, 1999, EPA and ALA met to discuss the status of the remand and agreed to extend the summer, 1999 deadline until January 15, 2000. During the time of the extension, EPA will continue to work on the remand.