The EPA is approving the redesignation request and limited maintenance plan for the PM<INF>10</INF> National Ambient Air Quality Standard developed for the City of Pinehurst PM<INF>10</INF> Nonattainment Area and the Pinehurst PM<INF>10</INF> Expansion Nonattainment Area. This redesignation will change the status of both areas from nonattainment to attainment. The limited maintenance plan for these contiguous nonattainment areas addresses maintenance of the PM<INF>10</INF> standard for a ten-year period beyond redesignation. Related to this action, the EPA is taking final agency action on the September 15, 2013, high wind exceptional event at the Pinehurst monitoring station. Additionally, the EPA is finalizing approval of the emissions inventory for the West Silver Valley 2012 annual PM<INF>2.5</INF> nonattainment area.