EPA is approving sulfur dioxide redesignation requests submitted by the State of Ohio on March 20, 2000, for Coshocton, Gallia, and Lorain Counties. This request was first submitted on October 26, 1995. Ohio subsequently provided supplemental material to EPA in a letter dated September 14, 1999. On March 20, 2000, Ohio submitted final requests to redesignate Coshocton, Gallia, and Lorain Counties to attainment of the National Ambient Air Quality Standards (NAAQS) for sulfur dioxide (SO<INF>2</INF>). EPA is also approving the maintenance plans for Coshocton, Gallia, and Lorain Counties. The plans are intended to ensure maintenance of the NAAQS for at least 10 years, and were submitted with the redesignation requests. In conjunction with these actions, EPA is approving state-adopted emission limits for the following facilities: in Coshocton County: Columbus and Southern Ohio Electric--Conesville Plant; in Gallia County: Ohio Valley Electric Company--Kyger Creek Plant and Ohio Power--Gavin Plant; and in Lorain County: CEI--Avon Lake Plant, Ohio Edison--Edgewater Plant, U.S. Steel--Lorain Plant, and B.F. Goodrich Company--Lorain County Plant. EPA is also approving other minor revisions in the state's rules for these three Counties. On November 23, 1999, EPA received one comment on the proposal to redesignate Coshocton, Gallia, and Lorain Counties. American Electric Power (AEP) encouraged EPA to take final action to approve the redesignation.