Approval and Promulgation of Implementation Plans: Alabama: Proposed Approval of Revisions to the Visible Emissions Rule and Alternative Proposed Disapproval of Revisions to the Visible Emissions Rule

概要

On April 3, 2009, EPA granted a February 25, 2009, petition seeking reconsideration of an October 15, 2008, final action approving a State Implementation Plan (SIP) revision regarding the State of Alabama's visible emissions rules. As part of its reconsideration process, EPA is now proposing to either affirm the previous rulemaking (which approved the revisions) or, alternatively, amend its previous rulemaking (i.e., disapproving the revisions). EPA is seeking public comment on the issues raised in the petition for reconsideration as well as the actions proposed in this notice. EPA is also seeking public comment on the relationship between opacity and particulate matter mass emissions. Following its evaluation of the issues raised in the petition for reconsideration, and any information submitted during the public comment process, EPA will take final action either affirming the previous rulemaking or amending the previous rulemaking and disapproving the revisions to the visible emissions portion of Alabama's SIP.