EPA Appoints New Heads of Two Independent Science Advisory Committees

November 16, 2012

EPA Appoints New Heads of Two Independent Science Advisory Committees

– U.S. Environmental Protection Agency (EPA) Administrator Lisa P. Jackson has appointed two engineers to serve as the Chairs of two independent Federal Advisory Committees, the EPA Science Advisory Board (SAB) and the Clean Air Scientific Advisory Committee (CASAC). Dr. David Allen, an internationally recognized engineer specializing in air quality will serve as the SAB Chair, and Dr. H. Christopher Frey, an environmental engineer expert in quantitative methods for dealing with variability and uncertainty, will serve as the CASAC Chair. They each will serve a two-year term.

“At EPA, using the best science available as we work to protect human health and the environment is critical. I’m honored to appoint Dr. David Allen and Dr. H. Christopher Frey, who will bring their expertise and unique talents to the helm of the SAB and CASAC, respectively, and help us ensure that science remains the backbone of all we do,” said EPA Administrator Lisa P. Jackson. “We’re grateful to Dr. Deborah Swackhamer, outgoing SAB chair, and Dr. Jonathan Samet, outgoing CASAC chair, for their dedicated service and leadership over the past four years.”

Dr. David Allen is the Gertz Regents Professor of Chemical Engineering and the Director of the Center for Energy and Environmental Resources at the University of Texas (UT) at Austin. As Director of the Center for Energy and Environmental Resources at UT-Austin and as Director of the Air Quality Research Program of the State of Texas, he brings extensive leadership experience to the job.

Dr. H. Christopher Frey is Professor of Civil, Construction, and Environmental Engineering at North Carolina State University in Raleigh, NC. He directs a multidisciplinary research program in the broad area of environmental systems analysis, including development and demonstration of quantitative methods for risk assessment, technology evaluation, and air pollutant emissions. Dr. Frey is a past president of the Society for Risk Analysis.

The SAB and the CASAC are independently chartered Federal Advisory Committees composed of external scientists and engineers. The SAB provides advice to the EPA Administrator on the scientific and technical information being used or proposed as the basis for EPA decisions. The CASAC provides advice to the EPA Administrator on the technical bases for EPA’s standards for criteria air pollutants.

More information about the SAB: http://www.epa.gov/sab

More information about CASAC: http://www.epa.gov/casac

Follow-Up Links From 9/6 TWG Meeting

The following information was provided by Jeffrey Riley (EPA), and are intended to be a follow-up from the 9/6 TWG meeting.

Policy Assessment for the Review of the Ozone NAAQS, First External Review Draft –


Health & Welfare Risk and Exposure Assessment for Ozone, First External Review Draft –


Notice of Extension of Comment Period –


2008 Ozone Conformity Links

EPA has released two transportation conformity guidance documents related to implementation of the 2008 ozone NAAQS:

  • Transportation Conformity Guidance for 2008 Ozone NAAQS Nonattainment Areas
  • Guidance for Transportation Conformity Implementation in Multi-Jurisdictional Nonattainment and Maintenance Areas

These documents can be found at the following website:

Also, an update to the Baseline Year for the Baseline Year Test (in 40 CFR 93.119) table has been added at: