Approval and Promulgation of Air Quality Implementation Plans; Indiana; South Bend/Elkhart, Indiana Ozone Maintenance Plan Revision to Approved Motor Vehicle Emissions Budgets

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EPA is approving Indiana's request to revise the South Bend/ Elkhart, Indiana 1997 8-hour ozone maintenance state air quality implementation plan (SIP) by replacing the previously approved motor vehicle emissions budgets (budgets) with budgets developed using EPA's Motor Vehicle Emissions Simulator (MOVES) emissions model. EPA proposed approval on October 4, 2012, and did not receive any public comments on the proposal.