The U.S. Environmental Protection Agency (EPA) is formally publishing the final Clean Power Plan in the Federal Register today, and a coalition of 24 states has launched a lawsuit against the agency in an effort to block the emissions-reduction initiative.

Initially released in 2014 and finalized in August 2015, the Clean Power Plan aims to increase the efficiency of coal-fired power plants; shift generation from coal- and oil-fired power plants to gas-fired power plants; and up the electricity generation from non-emitting renewable sources, including wind and solar.

The original goal was to cut carbon emissions from the power sector 30% below 2005 levels by 2030, but in the August revision, the EPA upped it to 32%.

Although the plan is expected by many, including the American Wind Energy Association, to be a major boon for U.S. renewables, some states and other stakeholders, such as utilities, argue that the changes would be too drastic.

West Virginia Attorney General Patrick Morrisey, who is leading the coalition of states against the plan, says it ‘unlawfully expands the federal government's regulatory power over electricity production and consumption in nearly every state.’

‘EPA claims to have sweeping power to enact such regulations based on a rarely used provision of the Clean Air Act, but such legal authority simply does not exist," Morrisey explains.

Besides West Virginia, the states challenging the rule are Texas, Alabama, Arkansas, Colorado, Florida, Georgia, Indiana, Kansas, Kentucky, Louisiana, Michigan, Missouri, Montana, Nebraska, New Jersey, Ohio, South Carolina, South Dakota, Utah, Wisconsin and Wyoming, as well as the Arizona Corporations Commission and the North Carolina Department of Environmental Quality.

According to their lawsuit, the states believe the rule could have ‘devastating impacts upon the states and their citizens’:

"The Section 111(d) rule exceeds EPA's authority by unlawfully forcing states to fundamentally alter state resource-planning and energy policy by shifting from coal-fired generation to other sources of power generation, with a significant emphasis on renewable sources. The rule is also illegal because it seeks to require states to regulate coal-fired power plants under Section 111(d) of the Clean Air Act, even though EPA already regulates those same plants under Section 112 of the Act."

"As attorney general, I have a responsibility to protect the lives of millions of working families, the elderly and the poor from such illegal and unconscionable federal government actions," Morrisey adds.

According to a report from The Hill, EPA Administrator Gina McCarthy says in a statement that the Clean Power Plan ‘is clearly within EPA's authority under the Clean Air Act’ and that the EPA is confident the agency will ‘prevail against these challenges.’

In a separate statement, Anna Aurilio, director of the Washington, D.C., office of Environment America, says, ‘No matter how deep the pockets of the polluters or how many lawsuits they or their government allies file, the Clean Power Plan will prevail, and if we're going to ensure a safer climate for future generations, it must.’