The US EPA requires 31 industries to track and report their emissions beginning in 2010 through the Greenhouse Gas Mandatory Reporting Rule finalized on October 30, 2009. EPA recently announced that they are expanding the scope of their GHG mandatory reporting rule to include more of the oil and natural gas sector, large fluorinated gas emitting sources and carbon sequestration. These sources would be required to track their emissions beginning in 2011. Public comment is currently open on this proposed rule expansion. The mandatory reporting is separate from EPA regulations announced yesterday on reducing carbon emissions. The regulations announced yesterday could be enforced in the event Congress does not pass a climate bill.