Prospect Of Tougher PM Limits Spurs Push For Stricter Vehicle Standards

EPA’s forthcoming proposal that is expected to tighten federal air quality standards for fine particulate matter (PM2.5) is spurring debate over the role that reducing vehicle emissions could play in helping states to meet stricter limits, as emissions control manufacturers press officials for tougher vehicle standards, but others doubt their efficacy. The White House Office of Management and Budget (OMB) is still reviewing EPA’s proposal to modify or leave unchanged EPA’s national ambient air quality standards (NAAQS) for all forms...