Review of the National Ambient Air Quality Standards for Ozone

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On or about October 1, 2009, the National Center for Environmental Assessment (NCEA) and the Office of Air Quality Planning and Standards (OAQPS) of EPA is making available for public review and comment a draft document titled Integrated Review Plan for the Ozone National Ambient Air Quality Standards Review--External Review Draft. This document contains the plans for the new periodic review of the air quality criteria for ozone (O3)-related effects on public health and public welfare and the current O3 standards or any revised standards that may result from the reconsideration of the 2008 O3 standards. This draft Integrated Review Plan (IRP) is being released for the purpose of consulting with the Clean Air Scientific Advisory Committee (CASAC) of EPA's Science Advisory Board 1 and obtaining public comment on the Agency's plans. The final IRP will be informed by comments received from the CASAC and the public. The draft IRP will be posted on the Agency's Technology Transfer Network (TTN) Web site at: http://www.epa.gov/ttn/naaqs/standards/ozone/s_o3_ index.html. The draft IRP may be accessed in the "Documents from Current Review" section under "Planning Documents."