The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision submitted by the State of New Jersey. This revision establishes an updated ten-year carbon monoxide (CO) maintenance plan for the Nine Not-Classified Areas in the State (the City of Atlantic City, the City of Burlington, the Borough of Freehold, the Town of Morristown, the Borough of Penns Grove, the City of Perth Amboy, the Borough of Somerville, the Toms River Area, and the City of Trenton) and Camden County. In addition, this action approves revisions to the CO, NO<INF>X</INF>, VOC, and PM<INF>2.5</INF> motor vehicle emissions budgets for Northern New Jersey. Finally, this notice approves revisions to the general conformity budget for McGuire Air Force Base and the 2002 ozone, PM<INF>2.5</INF>, and CO base year emissions inventories, where applicable. The Nine Not Classified Areas and Camden County were redesignated to attainment of the CO National Ambient Air Quality Standard (NAAQS) on February 5, 1996 and maintenance plans were also approved at that time. By this action, EPA is approving the New Jersey Department of Environmental Protection's (New Jersey) second maintenance plans for these areas because they provide for continued attainment of the CO NAAQS for an additional ten years. The intended effect of this rulemaking is to approve a SIP revision that will insure continued maintenance of the CO NAAQS.