Approval and Promulgation of Air Quality Implementation Plans; Maryland; Attainment Demonstration for the Washington County Ozone Early Action Compact Area
EPA is taking final action to approve a revision to the State of Maryland State Implementation Plan (SIP). This revision consists of an Early Action Compact (EAC) Plan that will enable the Washington County, Maryland Ozone EAC Area to demonstrate attainment and maintenance of the 8-hour ozone national ambient air quality (NAAQS) standard. This action is being taken under the Clean Air Act (CAA or Act).