How Effective are New EPA/NHTSA Medium-Heavy Duty Truck Greenhouse Gas and Fuel Efficiency Standards?

The Energy Collective: The EPA and NHTSA issued the first Greenhouse Gas and Fuel Efficiency (GHG&FE) Standards in 2011.  These GHG&FE Standards are designed to reduce new Medium-Heavy Duty (MD/HD) Trucks carbon dioxide tailpipe emissions and fuels consumption 2014-2018.  During the President’s 2014 State-of-the-Union speech, he announced plans for the EPA/NHTSA to begin developing the next phase of U.S. Truck GHG&FE Standards.  Based on recent DOE/EIA analysis, how effective are these new GHG&FE Standards projected to be in the future?

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