EPA floats copper smelters air rule

EPA has sent its draft final rule tightening air toxics emissions standards for primary copper smelters to the White House Office of Management and Budget (OMB) for interagency review, as the agency strives to issue the regulation by a May 2 judicial deadline. EPA sent the regulation for pre-publication review Feb. 16, according to OMB’s website. OMB review typically takes up to 90 days, but can be faster or slower, depending on the circumstances. The plan would tighten the national...