EPA is taking direct final action to approve a State Implementation Plan (SIP) revision submitted by the Maryland Department of the Environment (MDE) pertaining to the F. Keeler Company Boiler at Mount Saint Mary's College. This revision removes the Mount Saint Mary's College 1979 Consent Order (1979 Consent Order) from the Maryland SIP because the coal-fired F. Keeler Boiler has been modified by removing the coal-firing capability and converting the boiler to fire natural gas with No. 2 fuel oil as backup. EPA is approving this SIP revision because the 1979 Consent Order is no longer required as the modified gas-fired unit can comply with all visible emission and particulate requirements in the Maryland SIP, and this 1979 Consent Order is no longer required to satisfy any applicable Federal regulations or the Clean Air Act (CAA). This action is being taken under the CAA.