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<REGINFO_RIN_DATA xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" RUN_DATE="2026-04-12-04:00" xsi:noNamespaceSchemaLocation="https://www.reginfo.gov/public/xml/REGINFO_XML_Ver10262011.xsd">
    <RIN_INFO>
        <RIN>2060-AO02</RIN>
        <PUBLICATION>
            <PUBLICATION_ID>200804</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>Prevention of Significant Deterioration: Refinement To Increment Modeling Procedures</RULE_TITLE>
        <ABSTRACT><![CDATA[Part C of title I of the Clean Air Act (CAA) contains the requirements for a component of the major New Source Review (NSR) program known as the Prevention of Significant Deterioration (PSD) program. This program sets forth procedures for the preconstruction review and permitting of new and modified major stationary sources of air pollution locating in areas meeting the National Ambient Air Quality Standards (NAAQS), i.e., "attainment" areas, or in areas for which there is insufficient information to classify an area as either attainment or nonattainment, i.e., "unclassifiable" areas. The applicability of the PSD program to a particular source must be determined in advance of construction and is pollutant-specific. 

The PSD program also established increments, which are maximum increases in ambient air concentrations allowed in a PSD area over a baseline concentration. These increments follow the three-tiered area classification system established by Congress in Section 163 of the CAA. Class I areas include certain national parks and wilderness areas that were designated by Congress as areas of special national concern, where the need to prevent air quality deterioration is the greatest. Class II areas are all areas not specifically designated in the CAA as Class I areas, and Class III areas are the ones originally designated as Class II, where higher levels of industrial development (and emission growth) are desired.
 
 In this rulemaking, we will finalize refinements to several aspects of the method that may be used to calculate an increase in concentration for increment purposes. These refinements are intended to clarify how States and regulated sources may calculate increases in concentration for purposes of determining compliance with the PSD increments.]]></ABSTRACT>
        <PRIORITY_CATEGORY>Other Significant</PRIORITY_CATEGORY>
        <RIN_STATUS>Previously Published in The Unified Agenda</RIN_STATUS>
        <RULE_STAGE>Final Rule Stage</RULE_STAGE>
        <MAJOR>No</MAJOR>
        <UNFUNDED_MANDATE_LIST>
            <UNFUNDED_MANDATE>No</UNFUNDED_MANDATE>
        </UNFUNDED_MANDATE_LIST>
        <CFR_LIST>
            <CFR>40 CFR 51</CFR>
        </CFR_LIST>
        <LEGAL_AUTHORITY_LIST>
            <LEGAL_AUTHORITY>CAATitle I, Part C</LEGAL_AUTHORITY>
        </LEGAL_AUTHORITY_LIST>
        <LEGAL_DLINE_LIST/>
        <RPLAN_ENTRY>No</RPLAN_ENTRY>
        <TIMETABLE_LIST>
            <TIMETABLE>
                <TTBL_ACTION>NPRM</TTBL_ACTION>
                <TTBL_DATE>06/06/2007</TTBL_DATE>
                <FR_CITATION>72 FR 31372</FR_CITATION>
            </TIMETABLE>
            <TIMETABLE>
                <TTBL_ACTION>Final Action</TTBL_ACTION>
                <TTBL_DATE>10/00/2008</TTBL_DATE>
            </TIMETABLE>
        </TIMETABLE_LIST>
        <ADDITIONAL_INFO>SAN No. 5100; EPA publication information: NPRM - http://www.epa.gov/fedrgstr/EPA-AIR/2007/June/Day-06/a10459.htm; EPA Docket information: EPA-HQ-OAR-2006-0888</ADDITIONAL_INFO>
        <RFA_REQUIRED>No</RFA_REQUIRED>
        <SMALL_ENTITY_LIST>
            <SMALL_ENTITY>No</SMALL_ENTITY>
        </SMALL_ENTITY_LIST>
        <GOVT_LEVEL_LIST>
            <GOVT_LEVEL>State</GOVT_LEVEL>
            <GOVT_LEVEL>Tribal</GOVT_LEVEL>
        </GOVT_LEVEL_LIST>
        <FEDERALISM>No</FEDERALISM>
        <ENERGY_AFFECTED>No</ENERGY_AFFECTED>
        <PRINT_PAPER>No</PRINT_PAPER>
        <INTERNATIONAL_INTEREST>Not Collected</INTERNATIONAL_INTEREST>
        <AGENCY_CONTACT_LIST>
            <CONTACT>
                <FIRST_NAME>Jessica</FIRST_NAME>
                <LAST_NAME>Montanez</LAST_NAME>
                <AGENCY>
                    <CODE>2060</CODE>
                    <NAME>Office of Air and Radiation</NAME>
                    <ACRONYM>OAR</ACRONYM>
                </AGENCY>
                <PHONE>919 541-3407</PHONE>
                <FAX>919 541-5509</FAX>
                <EMAIL>montanez.jessica@epa.gov</EMAIL>
                <MAILING_ADDRESS>
                    <STREET_ADDRESS>C504-03,</STREET_ADDRESS>
                    <CITY>Research Triangle Park</CITY>
                    <STATE>NC</STATE>
                    <ZIP>27711</ZIP>
                </MAILING_ADDRESS>
            </CONTACT>
            <CONTACT>
                <FIRST_NAME>Dan</FIRST_NAME>
                <LAST_NAME>Deroek</LAST_NAME>
                <AGENCY>
                    <CODE>2060</CODE>
                    <NAME>Office of Air and Radiation</NAME>
                    <ACRONYM>OAR</ACRONYM>
                </AGENCY>
                <PHONE>919 541-5593</PHONE>
                <FAX>919 541-5509</FAX>
                <EMAIL>deroek.dan@epa.gov</EMAIL>
                <MAILING_ADDRESS>
                    <STREET_ADDRESS>C504-03,</STREET_ADDRESS>
                    <CITY>RTP</CITY>
                    <STATE>NC</STATE>
                    <ZIP>27711</ZIP>
                </MAILING_ADDRESS>
            </CONTACT>
        </AGENCY_CONTACT_LIST>
    </RIN_INFO>
</REGINFO_RIN_DATA>
