Approval and Promulgation of Air Quality Implementation Plans; Maryland; 2011 Base Year Inventory for the 2008 8-Hour Ozone National Ambient Air Quality Standard for the Baltimore, Maryland Nonattainment Area

The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision for the 2011 base year inventory for the Baltimore, Maryland moderate nonattainment area for the 2008 8-hour ozone national ambient air quality standard (NAAQS). The State of Maryland submitted the emission inventory through the Maryland Department of the Environment (MDE) to meet the nonattainment requirements for moderate ozone nonattainment areas for the 2008 8-hour ozone NAAQS. EPA is approving the 2011 base year emissions inventory for the 2008 8-hour ozone NAAQS as a revision to the Maryland state implementation plan (SIP) in accordance with the requirements of the Clean Air Act (CAA).