Mercury and Air Toxics Standards

In recent years, analysis of the world’s power plant emissions appears to have centered largely on carbon dioxide (CO 2 ), mainly because carbon dominates global accounting frameworks and climate goals. In

For many years, air pollution control (APC) rules and regulations have governed the design and economics of the world’s power generation fleet. These rules have had a tremendous impact, improving air quality

Public benefits offered by the Mercury and Air Toxics Standards (MATS) far outweigh the costs, the Environmental Protection Agency (EPA) said as it released a review of the 2012-finalized rule’s cost implications. The final cost consideration—released just days before power plants that received a one-year extension must come into compliance with the rule—was prompted by […]

U.S. Supreme Court Chief Justice John Roberts rejected the plea of 20 states to stay the Environmental Protection Agency’s (EPA’s) Mercury and Air Toxics Standards (MATS) rule while the agency works to comply with a previous ruling. Michigan Attorney General Bill Schuette had requested the stay to pause any further action to implement the rule […]

Rallied by the Supreme Court’s unprecedented stay of the Environmental Protection Agency’s (EPA) Clean Power Plan, a coalition of 20 states has asked the high court to stay another disputed agency rule: the Mercury and Air Toxics Standards (MATS). The states are: Alabama, Alaska, Arizona, Arkansas, Idaho, Iowa, Kansas, Kentucky, Michigan, Mississippi, Missouri, Nebraska, North […]

The Environmental Protection Agency (EPA) on Nov. 20 issued a supplemental finding that consideration of costs does not affect its previous conclusion that regulation of coal- and oil-fired power plants is “appropriate and necessary” under section 112 of the Clean Air Act. The finding was in response to a June decision by the U.S. Supreme […]

On June 29, much of the power sector rejoiced when the U.S. Supreme Court struck down the Environmental Protection Agency’s (EPA’s) Mercury and Air Toxics Standards (MATS) rule, finding that the EPA had

In a 5–4 decision announced on June 29, the U.S. Supreme Court overturned the Environmental Protection Agency’s (EPA’s) rules limiting mercury and other hazardous air pollutants released from power plants. In April 2014, the U.S. Court of Appeals for the D.C. Circuit upheld the Mercury and Air Toxics Standards (MATS), ruling in a 2–1 decision […]

As this month marks the compliance date for the Mercury and Air Toxics Standards (MATS), it’s a good time to take a step back from the many months of concern and consideration of options to see how coal-fired power plants are actually responding to the new rule. It’s also a good time to acknowledge that […]