Approval and Promulgation of Air Quality Implementation Plans; Maryland; Determination of Attainment of the 2008 8-Hour Ozone National Ambient Air Quality Standard for the Baltimore, Maryland Moderate Nonattainment Area

The Environmental Protection Agency (EPA) is making the determination that the Baltimore, Maryland Moderate Nonattainment Area (Baltimore Area) has attained the 2008 8-hour ozone National Ambient Air Quality Standard (NAAQS). This determination is based upon complete, quality-assured, and certified ambient air quality monitoring data that shows the Baltimore Area has monitored attainment of the 2008 8-hour ozone NAAQS for the 2012-2014 monitoring period. As a result of this determination, the requirement for the Baltimore Area to submit an attainment demonstration and associated reasonably available control measures (RACM), reasonable further progress plans (RFP), contingency measures, and other State Implementation Plan (SIP) revisions related to attainment of the standard are suspended for as long as the area continues to attain the 2008 8-hour ozone standard.