STATES, LAWMAKERS PRESS EPA TO RELEASE DELAYED PM, OZONE RULES

EPA is facing pressure from state officials and members of Congress to release its implementation rules for ozone and fine particulate matter (PM2.5), which have been delayed for months as they await approval by the White House Office of Management & Budget (OMB). These major new standards went into effect last year, but states are still uncertain about specific requirements for how to comply with them. State agencies need the rules in order to develop comprehensive air quality strategies known...