Approval and Promulgation of Air Quality Implementation Plans; State of Washington; Yakima Carbon Monoxide Redesignation to Attainment and Designation of Areas for Air Quality Planning Purposes

摘要

On September 26, 2001, the State of Washington requested EPA to redesignate the Yakima "not classified" carbon monoxide (CO) nonattainment area to attainment for the CO National Ambient Air Quality Standard (NAAQS) and submitted a CO maintenance plan for Yakima. In this action, EPA is approving the maintenance plan and redesignating the Yakima CO nonattainment area to attainment.