A federal Appeals Court has again delayed action on the controversial federal Clean Power Plan, Kallanish Energy reports.
The U.S. Court of Appeals for the District of Columbia Circuit ruled this week the case be held in abeyance for another 60 days.
The legal fight pits 28 states and numerous energy producers, utilities and trade organizations against the U.S. Environmental Protection Agency. The suit was filed in 2015.
The effort to curtail carbon dioxide emissions from existing coal-fired plants was one of the landmark actions taken by former President Obama.
The U.S. Supreme Court ruled the Clean Power Plan cannot be implemented until the merits of the case are heard.
A federal appeals court first heard oral arguments on the case in September 2016.
President Trump has signed an executive order calling on the EPA to begin a reevaluation of the Clean Power Plan, and implementation of the rule has been halted.
The EPA, in court filings, said that effort is under way. Environmentalists said the EPA review could take more than a year and the case should be heard.
Obama-era rules on carbon emissions from new, modified and reconstructed power plants remain in force.