Trump EPA to reconsider Obama-era mercury rule

Source: Zack Colman, E&E News reporter • Posted: Thursday, August 30, 2018

EPA will reconsider a rule that restricts mercury and toxic air emissions from power plants, the agency confirmed to E&E News today.

Agency spokeswoman Molly Block said it will initiate a federal review of a draft proposal to determine whether the Mercury and Air Toxics Standards, or MATS, were “appropriate and necessary.” It also will evaluate the overall standards.

“EPA knows these issues are of importance to the regulated community and the public at large and is committed to a thoughtful and transparent regulatory process in addressing them,” Block said in an email.

Bloomberg BNA first reported the news.

Most power plants have already complied with the regulation, which required the installation of pollution control technology. Others have shuttered. Several power companies now want the regulation to remain in place.

“If EPA recklessly disrupts the legal obligations to meet the Mercury & Air Toxics Standards, across the country coal plant owners will face legal challenges to prior utility commission approvals of pollution control costs incurred to meet those obligations,” John Walke, director of the federal clean air, climate and clean energy program with the Natural Resources Defense Council, said in an email. “Worse, EPA could let coal plant owners turn off installed pollution control equipment whose costs are being charged to consumers. Americans will suffer, needlessly.”

Conservatives, though, have argued reassessing — and potentially ditching — the rule is necessary. They noted the Supreme Court in 2015 rejected the Obama EPA’s cost-benefit analysis. It contended the agency didn’t properly account for industry’s compliance costs.

EPA later updated its calculations and found the regulation was still warranted. But opponents contend the agency relied on “co-benefits” — basically, counting reduction in pollutants outside of those directly regulated by the standards as a potential boon to public health.

The Trump administration is considering eliminating counting co-benefits of environmental regulations. Environmental groups and more liberal states, however, have charged that such a change would kneecap environmental regulations.

“One of a number of issues EPA is assessing in the context of the appropriate and necessary analysis is whether and how to account for co-benefits,” Block said.

Reporter Maxine Joselow contributed.