Q638. My onshore natural gas production facility reported stationary combustion emissions under subpart C for RY2010. For RY2011, I am subject to subpart W and I am required to report emissions at the basin level, bringing in new natural gas production wells from other facilities not previously covered in my RY 2010 report. Do I need to make any changes to my RY2010 report?

A638. No, your RY2010 report reflects emissions as required by subparts A and C of the GHG Reporting Rule in effect at that time. You do not need to make any changes to your RY2010 report to reflect the new requirements covered under 40 CFR subpart W.