1 Clean Air Update Ozone Rules (signed April 15, 2004) 8-hour ozone designations Final 8-hour Implementation Rule - Phase 1 Transition from the 1-hour.
May 23, 20061 PM 2.5 Implementation, Proposed Revisions and Haze Air Quality Issues Workshop Allegheny Mountain Section of the Air & Waste Management Association.
Summary of Clean Air Fine Particle Implementation Rule Proposed in November 2005 EPA Office of Air Quality Planning and Standards August 17, 2006.
Summary of Clean Air Fine Particle Implementation Rule Proposed in November 2005