SUPPLEMENTARY INFORMATION:

Background: The Clean Air Scientific Advisory Committee (CASAC) was established under section 109(d)(2) of the Clean Air Act (CAA or Act) (42 U.S.C. 7409) as a scientific advisory committee. The CASAC provides independent advice, information and recommendations on the scientific and technical aspects of air quality criteria and the National Ambient Air Quality Standards (NAAQS). The CASAC shall also: Advise the EPA Administrator of areas in which additional knowledge is required to appraise the adequacy and basis of existing, new, or revised NAAQS; describe the research efforts necessary to provide the required information; advise the EPA Administrator on the relative contribution to air pollution concentrations of natural as well as anthropogenic activity; and advise the EPA Administrator of any adverse public health, welfare, social, economic, or energy effects which may result from various strategies for attainment and maintenance of such NAAQS. The CAA requires that the Agency, at five-year intervals, review and revise, as appropriate, the air quality criteria and the NAAQS for the six “criteria” air pollutants, including particulate matter and ozone. EPA is currently reviewing the NAAQS for particulate matter and the NAAQS for ozone.

The CASAC is a Federal Advisory Committee chartered under the Federal Advisory Committee Act (FACA), 5 U.S.C., App. 2. The Chartered CASAC will comply with the provisions of FACA and all appropriate SAB Staff Office procedural policies. Pursuant to FACA and EPA policy, notice is hereby given that the Chartered CASAC will hold a public face-to-face meeting to discuss its Draft Report on EPA's Policy Assessment for the Review of the National Ambient Air Quality Standards (NAAQS) for Particulate Matter (External Review Draft—September 2019) and to peer review ( printed page 58714) EPA's Integrated Science Assessment for Ozone and Related Photochemical Oxidants (External Review Draft—September 2019) and EPA's Policy Assessment for the Review of the Ozone National Ambient Air Quality Standards (External Review Draft).

Technical Contacts: Any technical questions concerning the Policy Assessment for the Review of the National Ambient Air Quality Standards for Particulate Matter (External Review Draft—September 2019) should be directed to Dr. Scott Jenkins ( jenkins.scott@epa.gov). Any technical questions concerning the Integrated Science Assessment for Ozone and Related Photochemical Oxidants (External Review Draft—September 2019) should be directed to Dr. Tom Luben ( luben.tom@epa.gov) and Dr. Meredith Lassiter ( lassiter.meredith@epa.gov). Any technical questions concerning the Policy Assessment for the Review of the Ozone National Ambient Air Quality Standards (External Review Draft) should be directed to Dr. Deirdre Murphy ( murphy.deirde@epa.gov).

Availability of Meeting Materials: Prior to the meeting, the review documents, agenda and other materials will be accessible through the calendar link on the blue navigation bar at http://www.epa.gov/​casac/​.

Procedures for Providing Public Input: Public comment for consideration by EPA's federal advisory committees and panels has a different purpose from public comment provided to EPA program offices. Therefore, the process for submitting comments to a federal advisory committee is different from the process used to submit comments to an EPA program office. Federal advisory committees and panels, including scientific advisory committees, provide independent advice to EPA. Members of the public can submit relevant comments on the topic of this advisory activity, including the charge to the CASAC and the EPA review documents, for the CASAC to consider as it develops advice for EPA. Input from the public to the CASAC will have the most impact if it provides specific scientific or technical information or analysis for CASAC to consider or if it relates to the clarity or accuracy of the technical information. Members of the public wishing to provide comment should follow the instructions below to submit comments.

Oral Statements: Individuals or groups requesting an oral presentation during the face-to-face meeting will be limited to five minutes. Each person making an oral statement should consider providing written comments as well as their oral statement so that the points presented orally can be expanded upon in writing. Interested parties should contact Mr. Aaron Yeow, DFO, in writing (preferably via email) at the contact information noted above by November 26, 2019, to be placed on the list of public speakers.

Written Statements: Written statements will be accepted throughout the advisory process; however, for timely consideration by CASAC members, statements should be supplied to the DFO (preferably via email) at the contact information noted above by November 26, 2019. It is the SAB Staff Office general policy to post written comments on the web page for the advisory meeting or teleconference. Submitters are requested to provide an unsigned version of each document because the SAB Staff Office does not publish documents with signatures on its websites. Members of the public should be aware that their personal contact information, if included in any written comments, may be posted to the CASAC website. Copyrighted material will not be posted without explicit permission of the copyright holder.

Accessibility: For information on access or services for individuals with disabilities, please contact Mr. Aaron Yeow at (202) 564-2050 or yeow.aaron@epa.gov. To request accommodation of a disability, please contact Mr. Yeow preferably at least ten days prior to each meeting to give EPA as much time as possible to process your request.