Approval and Promulgation of Maintenance Plan and Designation of Area For Air Quality Planning Purposes for Carbon Monoxide; State of Arizona

Riepilogo

EPA is reproposing to redesignate the Tucson Air Planning Area (TAPA) to attainment for the carbon monoxide (CO) National Ambient Air Quality Standard (NAAQS) and to approve a maintenance plan that will insure that the area remains in attainment. EPA originally proposed to redesignate the TAPA to attainment for CO on July 22, 1998 (see 63 FR 39258) and is reproposing to provide the public with an opportunity to comment on additional information submitted by the Pima Association of Governments (PAG) in support of the redesignation and on several other new issues that were raised subsequent to publication of the original proposal.