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EPA, NHTSA issue One National Program Rule; EPA withdraws CA waiver for GHG and fuel economy

Green Car Congress

Specifically, in this action, NHTSA is affirming that its statutory authority to set nationally applicable fuel economy standards under the express preemption provisions of the Energy Policy and Conservation Act (EPCA) dictates that such state and local programs are preempted. Earlier post.)

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US EPA proposing allowing high-octane, higher ethanol content fuels as part of Tier 3 regs; E30 as example

Green Car Congress

Having approval for such a high octane certification fuel would, the EPA proposed in the Tier 3 Notice of Proposed Rulemaking: help manufacturers that wish to raise compression ratios to improve vehicle efficiency, as a step toward complying with the 2017 and later light-duty greenhouse gas and CAFE standards (2017 LD GHG).

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Study finds fleet switch from PFI to GDI engines will result in net reduction in global warming

Green Car Congress

Gasoline direct-injection (GDI) engines have higher fuel economy compared to the more widely used port fuel injection (PFI) engines. The EPA GHG program is aimed at reducing tailpipe CO 2 emissions. We estimate ozone and SOA formation potential. For our fleet, increases in the fuel economy of 1.6% (0.5−2.4%;

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MECA report finds additional NOx emission reductions from new heavy-duty trucks achievable and cost-effective

Green Car Congress

Source of data: US EPA (2019). NO x is a precursor for both ground level ozone and secondary PM 2.5 EPA is targeting implementation in the 2027 timeframe while CARB is focusing efforts on phasing in more stringent standards in 2024 and again in 2027 with the hope of aligning with EPA as a national standard. Chart: MECA.

Emissions 291
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National Academies release third review of the 21st Century Truck Partnership

Green Car Congress

The SuperTruck projects incorporated a number of vehicle power demand technologies that accounted for about 56 to 74% of the total fuel consumption reductions, with 26 to 44% coming from engine efficiency improvements. In terms of fuel economy, the truck achieved 10.7 gallons/1,000 ton-miles. gallons/1,000 ton-miles.

MPG 150
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Perspective: US Needs to Transition to Hydrous Ethanol as the Primary Renewable Transportation Fuel

Green Car Congress

80.27, “high ozone season” means the period from June 1 to September 15 of any calendar year and “regulatory control period” means the period from May 1 to September 15 of any calendar year. In February, 2009, the US EPA granted Renergie, Inc. Current Legal Requirement for Use of Anhydrous Ethanol in the United States. 40 CFR § 80.27

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House Chairmen Waxman, Markey Release Draft of Energy and Climate Legislation; Among the Many Provisions Are Cap-and-Trade, Harmonization of CAFE and California Vehicle Regulations, and Low Carbon Fuel Standard

Green Car Congress

The bill also directs the President to work with the relevant Federal agencies and California to harmonize, to the maximum extent possible, the federal fuel economy standards, any emission standards promulgated by EPA, and the California standards for light-duty vehicles. Transportation Efficiency. light duty vehicles—e.g.,

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