The Maricopa Association of Governments (MAG) will conduct a public hearing on the Draft Carbon Monoxide Redesignation Request and Maintenance Plan for the Maricopa County Nonattainment Area on May 5, 2003 at 5:30 p.m. The public hearing will be held at the MAG Offices located at 302 North First Avenue, Second Floor-Saguaro Room, in Phoenix, Arizona. The purpose of the hearing is to receive public comments.