Wehrum eyes decision on GHG limits for truck trailers

EPA air chief William Wehrum is said to be close to deciding whether to continue with a Pruitt-era plan to remove the trailers pulled by trucks from the agency's greenhouse gas rule for medium- and heavy-duty vehicles, or to take a less-aggressive posture that continues to regulate the equipment while imposing softer requirements than the 2016 phase 2 GHG regulation. One source following the possible shift in approach -- from ousted Administrator Scott Pruitt to acting Administrator Andrew Wheeler and...