Assessment of the contribution of stratospheric ozone to ground-level ozone concentrations

Ozone and Particulate Matter Research Act of 1997 : hearing before the Subcommittee on Clean Air, Wetlands, Private Property, and Nuclear Safety of the Committee on Environment and Public Works, United States Senate, One Hundred Fifth Congress, first session on S. 1084, a bill to establish a research and monitoring program for The National Ambient Air Quality Standards for ozone and particulate matter and to reinstate the original standards under the Clean Air Act, and for other purposes, October 22, 1997

EPA's new ozone standards hearing before the Committee on Oversight and Government Reform, House of Representatives, One Hundred Tenth Congress, second session, May 20, 2008

State perspectives on regulating background ozone : hearing before the Subcommittee on Environment, Committee on Science, Space, and Technology, House of Representatives, One Hundred Fifteenth Congress, second session, June 21, 2018

EPA's 2015 ozone standard : concerns over science and implementation : hearing before the Committee on Science, Space, and Technology, House of Representatives, One Hundred Fourteenth Congress, first session, October 22, 2015

Early Action Compact Program for ground-level ozone a study

Air quality and children's health : joint hearing before the Subcommittee on Clean Air and Nuclear Safety and the Subcommittee on Children's Health and Environmental Responsibility of the Committee on Environment and Public Works, United States Senate, One Hundred Twelfth Congress, first session, June 8, 2011

Challenges and implications of EPA's proposed national ambient air quality standard for ground-level ozone and legislative hearing on S. 638, S. 751, and S. 640 : hearing before the Committee on Environment and Public Works, United States Senate, One Hundred Fourteenth Congress, first session, June 3, 2015

Examining pathways toward compliance of the National Ambient Air Quality Standard for ground-level ozone : legislative hearing on S. 2882 and S. 2072 : hearing before the Subcommittee on Clean Air and Nuclear Safety of the Committee on Environment and Public Works, United States Senate, One Hundred Fourteenth Congress, second session, June 22, 2016

EPA regulatory overreach : impacts on American competitiveness : hearing before the Committee on Science, Space, and Technology, House of Representatives, One Hundred Fourteenth Congress, first session, June 4, 2015