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

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The action finalizes parts of the SAFE Vehicles Rule that was first proposed on 2 August 2018. For its part, EPA is withdrawing the Clean Air Act preemption waiver it granted to the State of California in January 2013 as it relates to California’s GHG and ZEV programs. Earlier post.)

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Tenneco/Gentherm showcasing prototype of thermoelectric generator for waste heat recovery; targeting 5% fuel economy improvement

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Tenneco and Gentherm (formerly BSST/Amerigon) are part of a US Department of Energy (DOE) consortium actively developing a thermoelectric generator (TEG) for capturing waste exhaust heat in vehicles and converting it to electrical energy to be used to power electrical systems within the vehicle.

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Auto Alliance urges EPA to withdraw premature Final Determination on light-duty GHG regulations, resume Midterm Evaluation process with NHTSA

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The Auto Alliance has sent a letter to EPA Administrator Scott Pruitt requesting that the US Environmental Protection Agency withdraw the Final Determination on the Appropriateness of the Model Year 2022-2025 Light-Duty Vehicle Greenhouse Gas Emissions Standards under the Midterm Evaluation which EPA announced on 13 January 2017.

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EPA GHG Inventory shows US GHG down 1.7% y-o-y in 2019, down 13% from 2005

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From 1990 to 2019, transportation CO 2 emissions from fossil fuel combustion rose by 24% due in large part to increased demand for travel. The number of vehicle miles traveled (VMT) by light-duty vehicles (i.e., The number of vehicle miles traveled (VMT) by light-duty vehicles (i.e.,

2005 418
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EPA and NHTSA Issue Notice of Intent to Develop New Greenhouse Gas and Fuel Economy Standards for Light-Duty Vehicle Model Years 2017-2025; Proposal Expected by 30 Sep 2011

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The US Department of Transportation’s (DOT) National Highway Traffic Safety Administration (NHTSA) and the US Environmental Protection Agency (EPA) issued a Notice of Intent (NOI) to begin developing new standards for greenhouse gases and fuel economy for light-duty vehicles for the 2017-2025 model years. Earlier post.).

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EPA annual inventory shows US GHG up 3.1% from 2017-2018

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From 1990 to 2018, transportation emissions from fossil fuel combustion rose by 21% due in large part to increased demand for travel. The number of vehicle miles traveled (VMT) by light-duty vehicles (i.e., The number of vehicle miles traveled (VMT) by light-duty vehicles (i.e.,

2018 243
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Study Assesses Product Attribute Trade-offs and Technological Progress; Meeting Proposed Obama Fuel Economy Standards Will Require Downsizing and Change in Fleet Mix

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Changes in the attributes (clockwise from upper left, weight, power, fuel economy and torque) of the Honda Accord over time as an example of fleet trends in the US. In contrast, fuel economy actually increased by 15% during that period. Knittel, 2009. Click to enlarge.