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    <RIN_INFO>
        <RIN>2060-AO47</RIN>
        <PUBLICATION>
            <PUBLICATION_ID>201104</PUBLICATION_ID>
            <PUBLICATION_TITLE>Unified Agenda of Federal Regulatory and Deregulatory Actions</PUBLICATION_TITLE>
        </PUBLICATION>
        <AGENCY>
            <CODE>2060</CODE>
            <NAME>Air and Radiation</NAME>
            <ACRONYM>AR</ACRONYM>
        </AGENCY>
        <PARENT_AGENCY>
            <CODE>2000</CODE>
            <NAME>Environmental Protection Agency</NAME>
            <ACRONYM>EPA</ACRONYM>
        </PARENT_AGENCY>
        <RULE_TITLE>Review of the National Ambient Air Quality Standards for Particulate Matter</RULE_TITLE>
        <ABSTRACT><![CDATA[Under the Clean Air Act, EPA is required to review and, if appropriate, revise the air quality criteria for the primary (health-based) and secondary (welfare-based) national ambient air quality standards (NAAQS) every 5 years. On October 17, 2006, EPA published a final rule to revise the primary and secondary NAAQS for particulate matter to provide increased protection of public health and welfare. With regard to the primary standard for fine particles (PM 2.5 generally referring to particles with an aerodynamic diameter less than or equal to 2.5 micrometers), EPA revised the level of the 24-hour PM2.5 standard to 35 micrograms per cubic meter (ug/m3) and retained the level of the annual PM2.5 standard at 15 ug/m3. With regard to primary standards for coarse particles (PM10, generally referring to particles with an aerodynamic diameter less than or equal to 10 micrometers, EPA retained the 24-hour PM10 standard and revoked the annual PM10 standard. With regard to secondary PM standards, EPA made them identical in all respects to the primary PM standards, as revised. EPA initiated the current review in 2007 with a workshop to discuss key policy-relevant issues around which EPA would structure the review. This review includes the preparation of an Integrated Science Assessment (ISA), Risk/Exposure Assessment (REA), and a Policy Assessment (PA) by EPA, with opportunities for review by EPA's Clean Air Scientific Advisory Committee and the public. These documents inform the Administrator's decision as to whether to retain or revise the standards. The ISA was completed in December 2009, the final REAs for health risk assessment and visibility assessment were finalized in June and July 2010, respectively. The first draft PA was reviewed by CASAC on April 8-9, 2010. The second draft Policy Assessment was reviewed by CASAC on July 26-27, 2010.]]></ABSTRACT>
        <PRIORITY_CATEGORY>Economically Significant</PRIORITY_CATEGORY>
        <RIN_STATUS>Previously Published in The Unified Agenda</RIN_STATUS>
        <RULE_STAGE>Long-Term Actions</RULE_STAGE>
        <MAJOR>Yes</MAJOR>
        <UNFUNDED_MANDATE_LIST>
            <UNFUNDED_MANDATE>No</UNFUNDED_MANDATE>
        </UNFUNDED_MANDATE_LIST>
        <CFR_LIST>
            <CFR>40 CFR 50</CFR>
        </CFR_LIST>
        <LEGAL_AUTHORITY_LIST>
            <LEGAL_AUTHORITY>42 USC 7408</LEGAL_AUTHORITY>
            <LEGAL_AUTHORITY>42 USC 7409</LEGAL_AUTHORITY>
        </LEGAL_AUTHORITY_LIST>
        <LEGAL_DLINE_LIST/>
        <RPLAN_ENTRY>No</RPLAN_ENTRY>
        <TIMETABLE_LIST>
            <TIMETABLE>
                <TTBL_ACTION>NPRM</TTBL_ACTION>
                <TTBL_DATE>To Be Determined</TTBL_DATE>
            </TIMETABLE>
            <TIMETABLE>
                <TTBL_ACTION>Final Action</TTBL_ACTION>
                <TTBL_DATE>To Be Determined</TTBL_DATE>
            </TIMETABLE>
        </TIMETABLE_LIST>
        <ADDITIONAL_INFO>EPA Docket information: EPA-HQ-OAR-2007-0492</ADDITIONAL_INFO>
        <RFA_REQUIRED>No</RFA_REQUIRED>
        <SMALL_ENTITY_LIST>
            <SMALL_ENTITY>No</SMALL_ENTITY>
        </SMALL_ENTITY_LIST>
        <GOVT_LEVEL_LIST>
            <GOVT_LEVEL>Federal</GOVT_LEVEL>
            <GOVT_LEVEL>Local</GOVT_LEVEL>
            <GOVT_LEVEL>State</GOVT_LEVEL>
            <GOVT_LEVEL>Tribal</GOVT_LEVEL>
        </GOVT_LEVEL_LIST>
        <FEDERALISM>No</FEDERALISM>
        <ENERGY_AFFECTED>No</ENERGY_AFFECTED>
        <FURTHER_INFO_URL>www.epa.gov/air/particlepollution/</FURTHER_INFO_URL>
        <PRINT_PAPER>No</PRINT_PAPER>
        <INTERNATIONAL_INTEREST>No</INTERNATIONAL_INTEREST>
        <AGENCY_CONTACT_LIST>
            <CONTACT>
                <FIRST_NAME>Beth</FIRST_NAME>
                <LAST_NAME>Hassett-Sipple</LAST_NAME>
                <AGENCY>
                    <CODE>2060</CODE>
                    <NAME>Office of Air and Radiation</NAME>
                    <ACRONYM>OAR</ACRONYM>
                </AGENCY>
                <PHONE>919 541-4605</PHONE>
                <FAX>919 541-0237</FAX>
                <EMAIL>hassett-sipple.beth@epa.gov</EMAIL>
                <MAILING_ADDRESS>
                    <STREET_ADDRESS>MD-13, C504-06,</STREET_ADDRESS>
                    <CITY>Research Triangle Park</CITY>
                    <STATE>NC</STATE>
                    <ZIP>27711</ZIP>
                </MAILING_ADDRESS>
            </CONTACT>
            <CONTACT>
                <FIRST_NAME>Karen</FIRST_NAME>
                <LAST_NAME>Martin</LAST_NAME>
                <AGENCY>
                    <CODE>2060</CODE>
                    <NAME>Office of Air and Radiation</NAME>
                    <ACRONYM>OAR</ACRONYM>
                </AGENCY>
                <PHONE>919 541-5274</PHONE>
                <FAX>919 541-0237</FAX>
                <EMAIL>Martin.Karen@epamail.epa.gov</EMAIL>
                <MAILING_ADDRESS>
                    <STREET_ADDRESS>C504-06,</STREET_ADDRESS>
                    <CITY>Research Triangle Park</CITY>
                    <STATE>NC</STATE>
                    <ZIP>27711</ZIP>
                </MAILING_ADDRESS>
            </CONTACT>
        </AGENCY_CONTACT_LIST>
    </RIN_INFO>
</REGINFO_RIN_DATA>
