This action finalizes confidentiality determinations for certain data elements in regulations under the Mandatory Greenhouse Gas Reporting Rule. In addition, the EPA is finalizing amendments to defer the reporting deadline of certain data elements until 2013 and to defer the reporting deadline of certain data elements until 2015. Lastly, the EPA is finalizing amendments regarding the calculation and reporting of emissions from facilities that use best available monitoring methods. This action does not include final confidentiality determinations for data elements in the "Inputs to Emission Equations" data category.