Approval and Promulgation of Air Quality Implementation Plans and Designations of Areas for Air Quality Planning Purposes; State of Connecticut; Approval of Maintenance Plan, Carbon Monoxide Redesignation Plan and Emissions Inventory for the Connecticut Portion of the New YorkN. New JerseyLong Island Area

EPA is approving a request by the Connecticut Department of Environmental Protection (CTDEP) on May 29, 1998 to redesignate the Connecticut portion of the New York--N. New Jersey--Long Island carbon monoxide nonattainment area (hereinafter the southwest Connecticut nonattainment area) from nonattainment to attainment for carbon monoxide (CO). EPA is approving this request which establishes the area as attainment for carbon monoxide and requires the State to implement their 10 year maintenance plan that will insure that the area remains in attainment. Under the Clean Air Act (CAA) as amended in 1990, designations can be revised if sufficient air quality data is available to warrant such revisions. EPA is approving the Connecticut request because it meets the redesignation requirements set forth in the CAA. In this action, EPA is also approving the 1993 periodic emission inventory for CO emissions.