Specifically, suppliers of fossil fuels, industrial greenhouse gases, manufacturers of vehicles and engines, and facilities that emit 25,000 metric tons or more per year of GHG emissions would have to submit annual reports to the EPA. This would impact roughly 13,000 facilities, like car manufacturers, power generators, chemical suppliers, cement producers, and others that emit up to 90 percent of the U.S.'s climate change pollution.
The gases covered by the EPA's proposal 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).
Only the largest emitters from the agriculture sector would need to report - those emitting more than 25,000 metric tons of CO2. The EPA estimates fewer than 50 of these large livestock operations exist.
Why the requirement? Measurement: The U.S. needs comprehensive data on climate change emissions in order to measure the progress towards the policies and cuts likely to be implemented by Congress soon.