A federal appeals court on Thursday allowed new rules restricting air pollution that crosses state lines to take effect, following up on a U.S. Supreme Court ruling that upheld the regulations in April.
Over the objection of industry groups and several states, the U.S. Court of Appeals for the D.C. Circuit lifted a stay that it imposed in 2011 halting enforcement of the Obama administration’s so-called “Transport Rule” aimed at curbing interstate air pollution created by industrial sources of nitrogen oxide and sulfur dioxide.
