Court Reinstates Major Regulation | Chemical & Engineering News
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Web Date: December 24, 2008

Court Reinstates Major Regulation

Until EPA crafts replacement, 2005 rule curbing ozone and particles is back in effect
Department: Government & Policy | Collection: Climate Change
News Channels: Environmental SCENE

On Dec. 23, a federal court reinstated a major regulation to control emissions from coal-fired power plants but said the move was only a stopgap measure until EPA issues a replacement rule.

In its latest move, the U.S. Court of Appeals for the District of Columbia Circuit modified its July decision overturning EPA's 2005 Clean Air Interstate Rule. That regulation was designed to reduce ground-level ozone and particle pollution in 28 eastern states.

When it threw out the regulation in July, the court deemed the rule fatally flawed and in violation of the Clean Air Act (C&EN, July 21, 2008, page 12). The court then instructed EPA to write a replacement regulation, a process that will take years.

The July decision alarmed states, which were relying on the 2005 rule to help them meet federal air quality standards for ozone and particulate matter. Meanwhile, some coal-fired utilities began considering whether to operate the emission control equipment that they installed to comply with the regulation, and other facilities cancelled orders for pollution control devices (C&EN, Oct. 20, 2008, page 46).

States, EPA, and environmental groups asked the appeals court to reconsider its July ruling. In its new decision, the full court agreed to let the 2005 regulation remain in effect until EPA issues a replacement rule. This means plant operators will have to carry through plans to install and operate pollution control equipment.

In a concurring opinion, Judge Judith W. Rogers explained, "The rule has become so intertwined with the regulatory scheme that [overturning it] would sacrifice clear benefits to public health and the environment while EPA fixes the rule."

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