CRS: Cars and Climate: What Can EPA Do to Control Greenhouse Gases from Mobile Sources?

Cars and Climate: What Can EPA Do to Control Greenhouse Gases from Mobil Sources – James E. McCarthy, Specialist in Environmental Policy, December 9, 2009.

  • “EPA has received 10 petitions asking that it make endangerment findings and proceed to regulate emissions of greenhouse gases. Nine of the 10 petitions address mobile sources, including motor vehicles, aircraft, ships, nonroad vehicles and engines, and fuels, under Title II of the Clean Air Act. This report discusses EPA’s authority under Title II and provides information regarding the mobile sources that might be regulated under this authority. Among these sources, motor vehicles (passenger cars and light trucks, including SUVs) are the initial targets for regulation, both because a petition addressing these sources began EPA’s consideration of the endangerment issue, and because these are the most significant GHG emission sources among those covered by Title II. EPA proposed GHG emission standards for new motor vehicles September 28, 2009, and
    expects to finalize them in time for their application to Model Year 2012 vehicles.”

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