The National Emission Standards for Hazardous Air Pollutants (NESHAP) rule issued pursuant to Clean Air Act (CAA) § 112 is referred to as the Mercury and Air Toxics Standards (MATS) NESHAP.
The New Source Performance Standards rule issued pursuant to CAA § 111 is referred to as the Utility NSPS.
The Administrator received petitions for reconsideration of certain issues in the final rules. In 2012, The Environmental Protection Agency took final action on its reconsideration of those issues on April 24, 2013 (78 FR 24073).
The U.S. Circuit Court for the District of Columbia upheld the rules in White Stallion Energy Ctr. v. EPA, 748 F.3d 1222 (D.C. Cir. 2012).
Search at Regulations.gov for materials filed in connection with the original rule and the rule upon reconsideration using the EPA docket numbers (or click on the links below):
Search at Regulations.gov for materials concerning "mercury and air toxics standards").
Review the most recent Regulatory Agenda:
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