If a Compact area is designated nonattainment under the PM2.5 standard, do they have to meet conformity requirements?
Yes. If a Compact area is designated nonattainment under the PM2.5 standard, they will have to meet the PM2.5 conformity requirements when the PM2.5 conformity grace period ends on April 5, 2006. However, they would not have to meet the 8-hour conformity requirements as long as their 8-hour deferral was in place. Several Compact areas were designated nonattainment under the PM2.5 standard, including: Greensboro-Winston Salem-High Point, NC (1-hour maintenance); Martinsburg-Hagerstown, MD-WV; Hickory-Morgantown-Lenoir, NC; and Chattanooga, TN-GA.
Related Questions
- For an MPO that is a newly designated urbanized area and designated nonattainment under the 8-hour ozone standard, do they need to have a conforming plan and TIP in place by June 15, 2005?
- If an area can demonstrate 8-hr conformity during the grace period, do they still have to meet the 1-hour conformity requirements?
- Can an area be in conformity under the 8-hour standard, but not in conformity for the PM2.5 standard?
