Approval and Promulgation of Air Quality Implementation Plans; Indiana; Redesignation of the Indianapolis Area to Attainment of the 1997 Annual Standard for Fine Particulate Matter

摘要

Due to the receipt of adverse comments, EPA is withdrawing the September 27, 2011 (76 FR 59512), direct final rule approving Indiana's request to redesignate the Indianapolis, Indiana nonattainment area (Hamilton, Hendricks, Johnson, Marion, and Morgan Counties) to attainment for the 1997 annual National Ambient Air Quality Standard for fine particulate matter (PM 2.5 ). In the direct final rule, EPA stated that if adverse comments were received by October 27, 2011, the rule would be withdrawn and not take effect. EPA has received adverse comments from three commenters and, therefore, is withdrawing the direct final rule. EPA will address the comments in a subsequent final action based upon the proposed action, also published on September 27, 2011 (76 FR 59599). EPA will not institute a second comment period on this action.