A. Executive Order 12866: Regulatory Planning and Review Under Executive Order 12866 (58 FR51735, October 4, 1993), this action is a ‘‘significant regulatory action’’ because it raises novel legal or policy issues arising out of the specific legal mandate of section 801 of the Energy Policy Act of 1992. Accordingly, EPA submitted this action to the Office of Management and Budget for review under Executive Order 12866 and any changes made in response to OMB recommendations have been documented in the docket for this action.