Approval and Promulgation of Air Quality Implementation Plans; Maryland; The Washington County 2002 Base Year Inventory

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EPA is proposing to approve the fine particulate matter (PM 2.5 ) 2002 base year emissions inventory portion of the State of Maryland State Implementation Plan (SIP) revision submitted by the State of Maryland, through the Maryland Department of the Environment (MDE), on June 6, 2008 for Washington County, Maryland. The emissions inventory is part of Maryland's June 6, 2008 SIP revision that was submitted to meet nonattainment requirements related to the Washington County nonattainment area (hereafter referred to as Washington County Area or Area) for Maryland's 1997 PM 2.5 National Ambient Air Quality Standard (NAAQS) SIP. EPA is proposing to approve the 2002 base year PM 2.5 emissions inventory for Washington County submitted by MDE in accordance with the requirements of the Clean Air Act (CAA).