(Source:  Autobloggreen)

 Automakers, fuel suppliers and engine builders would be among the organizations that would have to submit annual reports on their CO2 (and other greenhouse gas) emissions to the EPA, should a new proposed rule go through. In all, the 13,000 facilities that account for 85-90 percent of the GHGs emitted in the U.S. would be affected. To understand the baseline issue, here’s how the EPA explains the proposed rule: 

In general, EPA proposes that suppliers of fossil fuels or industrial greenhouse gases, manufacturers of vehicles and engines, and facilities that emit 25,000 metric tons or more per year of GHG emissions submit annual reports to EPA. The gases covered by the proposed rule are carbon dioxide (CO₂), methane (CH₄), nitrous oxide (N₂O), hydrofluorocarbons (HFC), perfluorocarbons (PFC), sulfur hexafluoride (SF₆), and other fluorinated gases including nitrogen trifluoride (NF₃) and hydrofluorinated ethers (HFE). 

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