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The Science Behind EPA's National Ambient Air Quality Standards: The Case of Ozone - POSTPONED

Date: Friday, September 9, 2011 Time: 09:30 AM Location: 2318 Rayburn House Office Building Washington DC 20515

Witnesses

Mr. Bob Perciasepe, Deputy Administrator, U.S. Environmental Protection Agency

Dr. Jonathan Samet, Chair, U.S. Environmental Protection Agency Clean Air Scientific Adivsory Committee

Additional Witnesses To Be Announced