Awaiting Studies With EPA, California Again Delays New Vehicle GHG Rules

California regulators are again delaying the proposed adoption of their next round of greenhouse gas (GHG) emission standards for passenger vehicles and light-duty trucks in order to complete key research studies they are jointly conducting with EPA and other organizations, sources say. The California plan is expected to strongly influence a forthcoming EPA and National Highway Traffic Safety Administration (NHTSA) proposal for national GHG emission and fuel economy standards for 2017-2025 model-year vehicles, with state and federal officials aiming to...