40 CFR Part 81, Subpart C - Section 107 Attainment Status Designations

This document corrects an error in the rule language of a final rule pertaining to West Virginia's request to redesignate to attainment the West Virginia portion of the Martinsburg-Hagerstown, WV-MD nonattainment area for the 1997 annual fine particulate matter (PM 2.5 ) national ambient air quality standard (NAAQS), which was published in the Federal Register on Tuesday, November 25, 2014 (79 FR 70099).

This document corrects errors in the rule language of a final rule pertaining to the Commonwealth of Pennsylvania's requests to redesignate to attainment the Harrisburg-Lebanon-Carlisle and York nonattainment areas for the 1997 annual fine particulate matter (PM 2.5 ) national ambient air quality standard (NAAQS) and the Harrisburg-Lebanon-Carlisle-York 2006 24-hour PM 2.5 NAAQS nonattainment area, which was published in the Federal Register on Tuesday, December 8, 2014 (79 FR 72552).

The Environmental Protection Agency (EPA) is redesignating to attainment the entire Tacoma-Pierce County nonattainment area (hereafter “the Tacoma area” or “the area”) for the 2006 24-hour fine particulate matter (PM 2.5 ) national ambient air quality standard (NAAQS). The EPA is also approving as a revision to the Washington State Implementation Plan (SIP), the associated maintenance plan that provides for continued compliance of the 2006 24-hour PM 2.5 NAAQS. Additionally, the EPA is approving the 2017 and 2026 motor vehicle emissions budgets included in Washington's maintenance plan for PM 2.5 and nitrogen oxides.

This rule establishes air quality designations for most areas in the United States (U.S.), including areas of Indian country, for the 2012 primary annual fine particle (PM 2.5 ) National Ambient Air Quality Standards (NAAQS). Through these designations, the Environmental Protection Agency (EPA) is identifying as “nonattainment” those areas that are violating the 2012 PM 2.5 NAAQS based on quality-assured, certified air quality monitoring data from 2011 to 2013 or those areas that are contributing to a violation of the NAAQS in a nearby area. The EPA is initially classifying all nonattainment areas as Moderate. Also, through this final rule, the EPA is designating several areas as “unclassifiable” where the EPA cannot determine based on available information whether the area is meeting or not meeting the NAAQS or where the EPA has not determined whether the area contributes to a nearby violation. Additionally, the EPA is deferring initial area designations for several areas where the EPA cannot determine using available data whether the areas are meeting or are not meeting the NAAQS, but for which forthcoming data will likely result in complete and valid data needed to determine a designation. The EPA will assess these data as they become available and promulgate initial area designations for the deferred areas through a separate rulemaking action. The EPA is designating as “unclassifiable/attainment” all remaining areas of the country.

On June 2, 2014, the Environmental Protection Agency (EPA) published a final rule in the Federal Register updating the Code of Federal Regulations (CFR) concerning the designations of areas for air quality planning purposes for the 1997 and 2006 PM 2.5 National Ambient Air Quality Standards (NAAQS) nonattainment areas. This correcting amendment corrects errors in the regulatory text of EPA's June 2, 2014, final rule related to the designations of the Macon, Georgia, and Rome, Georgia, areas for the 1997 Annual PM 2.5 NAAQS.

On April 23, 2013, the Alabama Department of Environmental Management (ADEM), submitted a request to redesignate the Alabama portion of the Chattanooga, TN-GA-AL fine particulate matter (PM 2.5 ) nonattainment area (hereafter referred to as the “Chattanooga TN-GA-AL Area” or “Area”) to attainment for the 1997 Annual PM 2.5 National Ambient Air Quality Standards (NAAQS) and to approve a State Implementation Plan (SIP) revision containing a maintenance plan for the Alabama portion of the Chattanooga TN-GA-AL Area. The Alabama portion of the Chattanooga TN-GA-AL Area is comprised of a portion of Jackson County in Alabama. EPA is approving the redesignation request and the related SIP revision, including the plan for maintaining attainment of the 1997 Annual PM 2.5 standard for the Chattanooga TN-GA-AL Area. EPA is also approving the on-road motor vehicle insignificance determination for direct PM 2.5 and nitrogen oxides (NOx) for the Alabama portion of the Chattanooga TN-GA-AL Area. On September 14, 2012, and November 13, 2014, Georgia and Tennessee (respectively) submitted requests to redesignate the Georgia and Tennessee portions of the Chattanooga TN-GA-AL Area. EPA will be taking separate action on the requests from Georgia and Tennessee.

On September 14, 2012, the Georgia Department of Natural Resources, through the Georgia Environmental Protection Division (GA EPD), submitted a request to redesignate the Georgia portion of Chattanooga, TN-GA-AL fine particulate matter (PM 2.5 ) nonattainment area (hereafter referred to as the “Chattanooga TN-GA-AL Area” or “Area”) to attainment for the 1997 annual PM 2.5 national ambient air quality standards (NAAQS) and to approve a state implementation plan (SIP) revision containing a maintenance plan for the Chattanooga TN-GA-AL Area. The Georgia portion of Chattanooga TN-GA-AL Area is comprised of two Counties: Catoosa and Walker Counties in Georgia. EPA is approving the redesignation request and the related SIP revision for the Georgia portion of Chattanooga TN-GA-AL Area, including GA EPD's plan for maintaining attainment of the 1997 Annual PM 2.5 standard in the Chattanooga TN-GA-AL Area. EPA is also approving, into the Georgia SIP, the motor vehicle emission budgets (MVEBs) for nitrogen oxides (NO x ) and PM 2.5 for the year 2025 for the Georgia portion of Chattanooga TN-GA-AL Area. On April 23, 2013, and November 13, 2014, Alabama and Tennessee (respectively) submitted requests to redesignate the Alabama and Tennessee portions of the Chattanooga TN-GA-AL Area. EPA will be taking separate action on the requests from Alabama and Tennessee.

The Environmental Protection Agency (EPA) is taking final action to approve, as a revision of the California state implementation plan (SIP), the State's request to redesignate the Yuba City-Marysville nonattainment area to attainment for the 2006 24-hour fine particulate matter (PM 2.5 ) National Ambient Air Quality Standard. The EPA is also taking final action to approve the PM 2.5 maintenance plan and the associated motor vehicle emissions budgets for use in transportation conformity determinations necessary for the Yuba City-Marysville area. Finally, the EPA is taking final action to approve the attainment year emissions inventory. The EPA is approving this revision because it meets the requirements of the Clean Air Act and EPA guidance for such plans, motor vehicle emissions budgets, and inventories.

The Environmental Protection Agency (EPA) is approving the State of West Virginia's request to redesignate to attainment the West Virginia portion of the Martinsburg-Hagerstown, WV-MD nonattainment area (the Martinsburg Area or Area) for the 1997 annual fine particulate matter (PM 2.5 ) national ambient air quality standard (NAAQS). EPA is also approving as a revision to the West Virginia State Implementation Plan (SIP) the associated maintenance plan to show maintenance of the 1997 annual PM 2.5 NAAQS through 2025 for the Area. As part of this action, EPA is making a determination that the Martinsburg Area continues to attain the 1997 annual PM 2.5 NAAQS. The maintenance plan includes the 2017 and 2025 PM 2.5 and nitrogen oxides (NO X ) mobile vehicle emissions budgets (MVEBs) for Berkeley County, West Virginia for the 1997 annual PM 2.5 NAAQS which EPA is approving for transportation conformity purposes. Furthermore, EPA is approving, as a revision to the West Virginia SIP, the 2007 base year emissions inventory for the Area for the 1997 annual PM 2.5 NAAQS. These actions are being taken under the Clean Air Act (CAA).

The Environmental Protection Agency (EPA) published a final rule in the Federal Register on Monday, June 2, 2014, updating regulations for the 1997 and 2006 PM 2.5 NAAQS nonattainment areas. Errors in the tables for the New York 1997 Annual PM 2.5 NAAQS and the New York 2006 24-hour PM 2.5 NAAQS are identified and corrected in this action.

The Environmental Protection Agency (EPA) published a final rule in the Federal Register on June 2, 2014, updating 40 CFR part 81, “Designation of Areas for Air Quality Planning Purposes” for the 1997 and 2006 PM 2.5 NAAQS nonattainment areas. An error in the table for the Wisconsin 2006 24-hour PM 2.5 NAAQS in 40 CFR 81.350 is identified and corrected in this action.

The Environmental Protection Agency (EPA) is correcting a final rule that appeared in the Federal Register of September 3, 2014 (79 FR 52205). The rule redesignated the Hayden area, which encompasses portions of southern Gila and eastern Pinal counties, Arizona, from “unclassifiable” to “nonattainment” for the 2008 national ambient air quality standards (“NAAQS” or “standards”) for lead (Pb). We are making several corrections to the table entitled “Arizona—2008 Lead NAAQS.” In the Gila County portion of the boundary description, we are adding township T4S, R14E. Although most of this township lies in Pinal County and is listed in that portion of the table, a small area in the northeast corner of T4S, R14E lies within Gila County. Also in the Gila County portion of the boundary description, we are removing the phrase, “except those portions in the San Carlos Indian Reservation” because there are no tribal lands within the Gila County portions of T4S, R16E and T5S, R16E. Finally, in the Pinal County portion of the boundary description, we are adding T4S, R15E. This township, which was part of the area that was initially designated as unclassifiable for the 2008 Pb NAAQS, was inadvertently omitted from the boundary description when the area was redesignated to nonattainment.

The Environmental Protection Agency (EPA) is approving, as a revision to the Arizona state implementation plan, a request from the Arizona Department of Environmental Quality to redesignate the Phoenix-Mesa ozone nonattainment area to attainment of the 1997 8-hour ozone National Ambient Air Quality Standard (NAAQS or “standard”) because the request meets the statutory requirements for redesignation under the Clean Air Act. EPA is also approving the State's plan for maintaining the 1997 ozone standard in the Phoenix-Mesa area for 10 years beyond redesignation, and the inventories and related motor vehicle emissions budgets within the plan, because they meet the applicable requirements for such plans and budgets.

In accordance with section 107(d)of the Clean Air Act (CAA), the Environmental Protection Agency (EPA) is redesignating the Hayden area, which encompasses portions of southern Gila and eastern Pinal counties, Arizona, from “unclassifiable” to “nonattainment” for the 2008 national ambient air quality standards (“NAAQS” or “standards”) for lead (Pb). EPA's redesignation of the Hayden area is based on recorded violations of the Pb standards at the Arizona Department of Environmental Quality's (ADEQ's) Globe Highway monitoring site, located near the towns of Hayden and Winkleman, Arizona, and additional relevant air quality information. The effect of this action will be to redesignate the Hayden area to nonattainment for the Pb standards and thereby to impose certain planning requirements on the State of Arizona to reduce Pb concentrations within the Hayden area, including, but not limited to, the requirement to submit, within 18 months of redesignation, a revision to the Arizona state implementation plan (SIP) that provides for attainment of the Pb standards as expeditiously as practicable, but no later than five years after the effective date of this redesignation.

The Environmental Protection Agency (EPA) is approving the State of Delaware's requests to redesignate to attainment the Delaware portion of the Philadelphia-Wilmington, PA-NJ-DE nonattainment area (hereafter “the Philadelphia Area” or “the Area”) for both the 1997 annual and the 2006 24-hour fine particulate matter (PM 2.5 ) National Ambient Air Quality Standards (NAAQS or standards). EPA is also approving as revisions to the Delaware State Implementation Plan (SIP), the associated maintenance plans to show maintenance of the 1997 annual and the 2006 24-hour PM 2.5 NAAQS through 2025 for the Delaware portion of the Area. EPA is also proposing to approve the motor vehicle emissions budgets (MVEBs) included in Delaware's maintenance plans for the Delaware portion of the Area for both the 1997 annual and 2006 24-hour PM 2.5 standards. EPA is also determining that the Delaware portion of the Philadelphia Area continues to attain both the 1997 annual and the 2006 24-hour PM 2.5 NAAQS. In addition, EPA is approving the 2007 emissions inventory for the Delaware portion of the Area for the 2006 24-hour PM 2.5 NAAQS. These actions are being taken under the Clean Air Act (CAA).

This document corrects an error in the rule language of a final rule pertaining to West Virginia's request to redesignate to attainment the West Virginia portion of the Martinsburg-Hagerstown, WV-MD nonattainment area for the 1997 annual fine particulate matter (PM 2.5 ) national ambient air quality standard (NAAQS), which was published in the Federal Register on Tuesday, November 25, 2014 (79 FR 70099).

This document corrects errors in the rule language of a final rule pertaining to the Commonwealth of Pennsylvania's requests to redesignate to attainment the Harrisburg-Lebanon-Carlisle and York nonattainment areas for the 1997 annual fine particulate matter (PM 2.5 ) national ambient air quality standard (NAAQS) and the Harrisburg-Lebanon-Carlisle-York 2006 24-hour PM 2.5 NAAQS nonattainment area, which was published in the Federal Register on Tuesday, December 8, 2014 (79 FR 72552).

The Environmental Protection Agency (EPA) is redesignating to attainment the entire Tacoma-Pierce County nonattainment area (hereafter “the Tacoma area” or “the area”) for the 2006 24-hour fine particulate matter (PM 2.5 ) national ambient air quality standard (NAAQS). The EPA is also approving as a revision to the Washington State Implementation Plan (SIP), the associated maintenance plan that provides for continued compliance of the 2006 24-hour PM 2.5 NAAQS. Additionally, the EPA is approving the 2017 and 2026 motor vehicle emissions budgets included in Washington's maintenance plan for PM 2.5 and nitrogen oxides.

The Environmental Protection Agency (EPA) is proposing to approve the Commonwealth of Pennsylvania's request to redesignate to attainment the Allentown nonattainment area (Allentown Area or Area) for the 2006 24-hour fine particulate matter (PM 2.5 ) national ambient air quality standard (NAAQS). EPA is also proposing to determine that the Allentown Area continues to attain the 2006 24-hour PM 2.5 NAAQS. In addition, EPA is proposing to approve as a revision to the Pennsylvania State Implementation Plan (SIP) the associated maintenance plan to show maintenance of the 2006 24-hour PM 2.5 NAAQS through 2025 for the Area. The maintenance plan includes the 2017 and 2025 PM 2.5 and nitrogen oxides (NO x ) mobile vehicle emissions budgets (MVEBs) for the Area for the 2006 24-hour PM 2.5 NAAQS, which EPA is proposing to approve for transportation conformity purposes. Finally, EPA is proposing to approve as a revision to the Pennsylvania SIP the 2007 base year emissions inventory for the Area for the 2006 24-hour PM 2.5 NAAQS. This rulemaking action to propose approval of the 2006 24-hour PM 2.5 NAAQS redesignation request and associated maintenance plan for the Allentown Area is based on EPA's determination that Pennsylvania has met the criteria for redesignation to attainment specified in the Clean Air Act (CAA) for the 2006 24-hour PM 2.5 NAAQS.

This rule establishes air quality designations for most areas in the United States (U.S.), including areas of Indian country, for the 2012 primary annual fine particle (PM 2.5 ) National Ambient Air Quality Standards (NAAQS). Through these designations, the Environmental Protection Agency (EPA) is identifying as “nonattainment” those areas that are violating the 2012 PM 2.5 NAAQS based on quality-assured, certified air quality monitoring data from 2011 to 2013 or those areas that are contributing to a violation of the NAAQS in a nearby area. The EPA is initially classifying all nonattainment areas as Moderate. Also, through this final rule, the EPA is designating several areas as “unclassifiable” where the EPA cannot determine based on available information whether the area is meeting or not meeting the NAAQS or where the EPA has not determined whether the area contributes to a nearby violation. Additionally, the EPA is deferring initial area designations for several areas where the EPA cannot determine using available data whether the areas are meeting or are not meeting the NAAQS, but for which forthcoming data will likely result in complete and valid data needed to determine a designation. The EPA will assess these data as they become available and promulgate initial area designations for the deferred areas through a separate rulemaking action. The EPA is designating as “unclassifiable/attainment” all remaining areas of the country.

The Environmental Protection Agency (EPA) is proposing to reclassify the San Joaquin Valley (SJV) Moderate nonattainment area, including areas of Indian country within it, as a Serious nonattainment area for the 1997 PM 2.5 national ambient air quality standards (NAAQS) based on EPA's determination that the area cannot practicably attain these NAAQS by the applicable attainment date of April 5, 2015. Upon final reclassification as a Serious area, California will be required to submit a Serious area plan including a demonstration that the plan provides for attainment of the 1997 annual and 24-hour PM 2.5 standards in the SJV area by the applicable attainment date, which is no later than December 31, 2015, or by the most expeditious alternative date practicable, in accordance with the requirements of part D of title I of the Clean Air Act.

The Environmental Protection Agency (EPA) is proposing to revise the boundaries of the Southern California air quality planning areas to designate the reservation of the Pechanga Band of Luiseño Mission Indians of the Pechanga Reservation, California as a separate air quality planning area for the 1997 8-hour ozone National Ambient Air Quality Standard. The EPA is also proposing to approve the Tribe's tribal implementation plan for maintaining the 1997 ozone standard within the Pechanga Reservation through 2025 because it meets the Clean Air Act's and the EPA's requirements for maintenance plans. Lastly, based in part on the proposed approval of the maintenance plan, EPA is proposing to grant a request from the Tribe to redesignate the Pechanga Reservation ozone nonattainment area to attainment for the 1997 8-hour ozone standard because the area meets the statutory requirements for redesignation under the Clean Air Act.

The Environmental Protection Agency (EPA) is proposing to approve the State of Missouri's request to redesignate the Missouri portion of the St. Louis MO-IL nonattainment area, the “St. Louis area” or “area” to attainment for the 1997 8-hour National Ambient Air Quality Standards (NAAQS or Standard) for ozone (O 3 ). The Missouri counties comprising the St. Louis area are Franklin, Jefferson, St. Charles, and St. Louis along with the City of St. Louis. In addition to the redesignation request, EPA is proposing to approve a State Implementation Plan (SIP) revision containing a maintenance plan for the O 3 standard for the Missouri portion of the St. Louis area. In a separate action published in the Federal Register on June 12, 2012, EPA has taken final action to address the Illinois portion of the St. Louis area.

On June 2, 2014, the Environmental Protection Agency (EPA) published a final rule in the Federal Register updating the Code of Federal Regulations (CFR) concerning the designations of areas for air quality planning purposes for the 1997 and 2006 PM 2.5 National Ambient Air Quality Standards (NAAQS) nonattainment areas. This correcting amendment corrects errors in the regulatory text of EPA's June 2, 2014, final rule related to the designations of the Macon, Georgia, and Rome, Georgia, areas for the 1997 Annual PM 2.5 NAAQS.

On September 14, 2012, the Georgia Department of Natural Resources, through the Georgia Environmental Protection Division (GA EPD), submitted a request to redesignate the Georgia portion of Chattanooga, TN-GA-AL fine particulate matter (PM 2.5 ) nonattainment area (hereafter referred to as the “Chattanooga TN-GA-AL Area” or “Area”) to attainment for the 1997 annual PM 2.5 national ambient air quality standards (NAAQS) and to approve a state implementation plan (SIP) revision containing a maintenance plan for the Chattanooga TN-GA-AL Area. The Georgia portion of Chattanooga TN-GA-AL Area is comprised of two Counties: Catoosa and Walker Counties in Georgia. EPA is approving the redesignation request and the related SIP revision for the Georgia portion of Chattanooga TN-GA-AL Area, including GA EPD's plan for maintaining attainment of the 1997 Annual PM 2.5 standard in the Chattanooga TN-GA-AL Area. EPA is also approving, into the Georgia SIP, the motor vehicle emission budgets (MVEBs) for nitrogen oxides (NO x ) and PM 2.5 for the year 2025 for the Georgia portion of Chattanooga TN-GA-AL Area. On April 23, 2013, and November 13, 2014, Alabama and Tennessee (respectively) submitted requests to redesignate the Alabama and Tennessee portions of the Chattanooga TN-GA-AL Area. EPA will be taking separate action on the requests from Alabama and Tennessee.

The Environmental Protection Agency (EPA) is proposing to redesignate to attainment the entire Tacoma-Pierce County nonattainment area (hereafter “the Tacoma area” or “the area”) for the 2006 24-hour fine particulate matter (PM 2.5 ) national ambient air quality standard (NAAQS). The EPA is also proposing to approve as a revision to the Washington State Implementation Plan (SIP), the associated maintenance plan that provides for continued compliance of the 2006 24-hour PM 2.5 NAAQS. Additionally, the EPA is proposing to approve the 2017 and 2026 motor vehicle emissions budgets included in Washington's maintenance plan for PM 2.5 and nitrogen oxides (NO X ). In the course of proposing to approve redesignation of the Tacoma area, the EPA addresses a number of additional issues, including the effects of a January 4, 2013 decision by the United States Court of Appeals for the District of Columbia (D.C. Circuit or Court) to remand to the EPA two final rules implementing the 1997 PM 2.5 NAAQS.

The Environmental Protection Agency (EPA) is taking final action to approve, as a revision of the California state implementation plan (SIP), the State's request to redesignate the Yuba City-Marysville nonattainment area to attainment for the 2006 24-hour fine particulate matter (PM 2.5 ) National Ambient Air Quality Standard. The EPA is also taking final action to approve the PM 2.5 maintenance plan and the associated motor vehicle emissions budgets for use in transportation conformity determinations necessary for the Yuba City-Marysville area. Finally, the EPA is taking final action to approve the attainment year emissions inventory. The EPA is approving this revision because it meets the requirements of the Clean Air Act and EPA guidance for such plans, motor vehicle emissions budgets, and inventories.

The Environmental Protection Agency (EPA) is approving the State of West Virginia's request to redesignate to attainment the West Virginia portion of the Martinsburg-Hagerstown, WV-MD nonattainment area (the Martinsburg Area or Area) for the 1997 annual fine particulate matter (PM 2.5 ) national ambient air quality standard (NAAQS). EPA is also approving as a revision to the West Virginia State Implementation Plan (SIP) the associated maintenance plan to show maintenance of the 1997 annual PM 2.5 NAAQS through 2025 for the Area. As part of this action, EPA is making a determination that the Martinsburg Area continues to attain the 1997 annual PM 2.5 NAAQS. The maintenance plan includes the 2017 and 2025 PM 2.5 and nitrogen oxides (NO X ) mobile vehicle emissions budgets (MVEBs) for Berkeley County, West Virginia for the 1997 annual PM 2.5 NAAQS which EPA is approving for transportation conformity purposes. Furthermore, EPA is approving, as a revision to the West Virginia SIP, the 2007 base year emissions inventory for the Area for the 1997 annual PM 2.5 NAAQS. These actions are being taken under the Clean Air Act (CAA).

The Environmental Protection Agency (EPA) published a final rule in the Federal Register on Monday, June 2, 2014, updating regulations for the 1997 and 2006 PM 2.5 NAAQS nonattainment areas. Errors in the tables for the New York 1997 Annual PM 2.5 NAAQS and the New York 2006 24-hour PM 2.5 NAAQS are identified and corrected in this action.

The Environmental Protection Agency (EPA) is proposing to approve the Commonwealth of Pennsylvania's requests to redesignate to attainment the Harrisburg-Lebanon-Carlisle-York nonattainment areas (hereafter “the Areas”) for the 1997 annual and 2006 24-hour fine particulate matter (PM 2.5 ) national ambient air quality standard (NAAQS). This proposed approval is contingent upon the United States Court of Appeals for the District of Columbia (D.C. Circuit Court) granting EPA's motion to lift the stay of the Cross State Air Pollution Rule (CSAPR) that the D.C. Circuit Court issued on December 30, 2011. EPA is proposing to find that the attainment of the Areas is in part due to the emissions reductions resulting from the Clean Air Interstate Rule (CAIR) in Pennsylvania and in the states upwind of Pennsylvania. Thus, if the D.C. Circuit Court lifts the stay of CSAPR and grants EPA's motion to begin implementation of CSAPR on January 1, 2015, those emission reductions originally required under CAIR will be made permanent and enforceable through the implementation of CSAPR. In addition to the redesignation requests, EPA is also proposing to determine that the Areas continue to attain the 1997 annual and the 2006 24-hour PM 2.5 NAAQS. Furthermore, EPA is proposing to approve as revisions to the Pennsylvania State Implementation Plan (SIP), the associated maintenance plans to show maintenance of the 1997 annual and 2006 24-hour PM 2.5 NAAQS through 2025 for the Areas. The maintenance plans include the 2017 and 2025 PM 2.5 and nitrogen oxides (NO X ) mobile vehicle emissions budgets (MVEBs) for the Areas for the 1997 annual and the 2006 24-hour PM 2.5 NAAQS which EPA is proposing to approve for transportation conformity purposes. EPA is also initiating the process to determine if these budgets are adequate for transportation conformity purposes. In addition, EPA is proposing to approve as revisions to the Pennsylvania SIP, the 2007 base year emissions inventory for the Areas for the 1997 annual and the 2006 24-hour PM 2.5 NAAQS. EPA's proposed approvals of the maintenance plans and MVEBs for the Areas are also contingent upon the lifting of the CSAPR stay by the D.C. Circuit Court.

The Environmental Protection Agency (EPA) is proposing to approve, as a revision of the California state implementation plan (SIP), the State's request to redesignate the Yuba City-Marysville nonattainment area to attainment for the 2006 24-hour fine particulate matter (PM 2.5 ) National Ambient Air Quality Standard. EPA is also proposing to approve the PM 2.5 maintenance plan and the associated motor vehicle emissions budgets for use in transportation conformity determinations necessary for the Yuba City-Marysville area. Finally, EPA is proposing to approve the attainment year emissions inventory. EPA is proposing this action because the SIP revision meets the requirements of the Clean Air Act and EPA guidance for such plans and motor vehicle emissions budgets.

The Environmental Protection Agency (EPA) is correcting a final rule that appeared in the Federal Register of September 3, 2014 (79 FR 52205). The rule redesignated the Hayden area, which encompasses portions of southern Gila and eastern Pinal counties, Arizona, from “unclassifiable” to “nonattainment” for the 2008 national ambient air quality standards (“NAAQS” or “standards”) for lead (Pb). We are making several corrections to the table entitled “Arizona—2008 Lead NAAQS.” In the Gila County portion of the boundary description, we are adding township T4S, R14E. Although most of this township lies in Pinal County and is listed in that portion of the table, a small area in the northeast corner of T4S, R14E lies within Gila County. Also in the Gila County portion of the boundary description, we are removing the phrase, “except those portions in the San Carlos Indian Reservation” because there are no tribal lands within the Gila County portions of T4S, R16E and T5S, R16E. Finally, in the Pinal County portion of the boundary description, we are adding T4S, R15E. This township, which was part of the area that was initially designated as unclassifiable for the 2008 Pb NAAQS, was inadvertently omitted from the boundary description when the area was redesignated to nonattainment.

The Environmental Protection Agency (EPA) is approving, as a revision to the Arizona state implementation plan, a request from the Arizona Department of Environmental Quality to redesignate the Phoenix-Mesa ozone nonattainment area to attainment of the 1997 8-hour ozone National Ambient Air Quality Standard (NAAQS or “standard”) because the request meets the statutory requirements for redesignation under the Clean Air Act. EPA is also approving the State's plan for maintaining the 1997 ozone standard in the Phoenix-Mesa area for 10 years beyond redesignation, and the inventories and related motor vehicle emissions budgets within the plan, because they meet the applicable requirements for such plans and budgets.

The U.S. Environmental Protection Agency (EPA) is providing notice that it has responded to a petition from the Sierra Club that requests the EPA to redesignate as nonattainment 57 areas with 2012 design values violating the 2008 national ambient air quality standards (NAAQS) for ozone. The petition also requests that the EPA set specific boundaries for the areas. The EPA Administrator denied the petition in letters to the signatories of the petition dated August 14, 2014. The letters explain the EPA's reasons for the denial and are available in the rulemaking docket.

In accordance with section 107(d)of the Clean Air Act (CAA), the Environmental Protection Agency (EPA) is redesignating the Hayden area, which encompasses portions of southern Gila and eastern Pinal counties, Arizona, from “unclassifiable” to “nonattainment” for the 2008 national ambient air quality standards (“NAAQS” or “standards”) for lead (Pb). EPA's redesignation of the Hayden area is based on recorded violations of the Pb standards at the Arizona Department of Environmental Quality's (ADEQ's) Globe Highway monitoring site, located near the towns of Hayden and Winkleman, Arizona, and additional relevant air quality information. The effect of this action will be to redesignate the Hayden area to nonattainment for the Pb standards and thereby to impose certain planning requirements on the State of Arizona to reduce Pb concentrations within the Hayden area, including, but not limited to, the requirement to submit, within 18 months of redesignation, a revision to the Arizona state implementation plan (SIP) that provides for attainment of the Pb standards as expeditiously as practicable, but no later than five years after the effective date of this redesignation.

Notice is hereby given that the Environmental Protection Agency (EPA) has posted its responses to state and tribal designation recommendations for the 2012 primary annual fine particle (PM 2.5 ) National Ambient Air Quality Standards (NAAQS) on the agency's Internet Web site. The EPA invites the public to review and provide input on its responses during the comment period specified in the DATES section. The EPA sent its responses directly to the states and tribes on or about August 19, 2014. These responses focus on designating as “nonattainment” certain areas of the country where air monitoring data from 2011-2013 indicate violations of the 2012 primary annual PM 2.5 NAAQS. The EPA intends to make final designation determinations for the 2012 primary annual PM 2.5 NAAQS for most areas of the country in December 2014. This notice also announces the EPA's decision to extend the designation period by up to 1 year to December 2015 for a limited number of areas for which insufficient information is currently available to promulgate designations.

The Environmental Protection Agency (EPA) is providing notice that it has responded to two petitions for reconsideration of a rule published in the Federal Register on August 5, 2013, that promulgated the initial air quality designations for the 2010 Primary SO 2 National Ambient Air Quality Standard (NAAQS) for certain areas in the United States. The rule is titled “Air Quality Designations for the 2010 Sulfur Dioxide (SO 2 ) Primary National Ambient Air Quality Standard.” One petition was submitted by the Treasure State Resource Industry Association and Yellowstone County, and the other petition was submitted by the Montana Sulphur and Chemical Company (the Petitioners). The EPA carefully considered these petitions and supporting information, along with information contained in the rulemaking docket, in reaching decisions on these petitions. The EPA denied the petitions for reconsideration in separate letters to the Petitioners dated August 14, 2014. The letters explain the EPA's reasons for the denials. One of the Petitioners also requested that the EPA stay the effectiveness of the designations rule, pending reconsideration. Because the EPA denied the reconsideration requests, the EPA also denied the stay request.

The Environmental Protection Agency (EPA) is proposing to approve the State of Maryland's request to redesignate to attainment the Maryland portion of the Martinsburg-Hagerstown, WV-MD Nonattainment Area (Martinsburg Area or Area) for the 1997 annual fine particulate matter (PM 2.5 ) national ambient air quality standard (NAAQS). The Maryland portion of the Martinsburg Area is comprised of Washington County, Maryland. EPA has determined that the Martinsburg Area attained the standard and continues to attain the standard. In addition, EPA is proposing to approve, as a revision to the Maryland State Implementation Plan (SIP), the Washington County maintenance plan to show maintenance of the 1997 annual PM 2.5 NAAQS through 2025 for the Maryland portion of the Area. The maintenance plan includes the 2017 and 2025 PM 2.5 and nitrogen oxides (NO X ) mobile vehicle emissions budgets (MVEBs) for Washington County, Maryland for the 1997 annual PM 2.5 NAAQS, which EPA is proposing to approve for transportation conformity purposes. These actions are being taken under the Clean Air Act (CAA).

The Environmental Protection Agency (EPA) is proposing to approve the requests from the District of Columbia (the District), the State of Maryland (Maryland), and the Commonwealth of Virginia (Virginia) (collectively “the States”) to redesignate to attainment their respective portions of the Washington, DC-MD-VA nonattainment area (hereafter “the Washington Area” or “the Area”) for the 1997 annual fine particulate matter (PM 2.5 ) National Ambient Air Quality Standard (NAAQS or standard). EPA is also proposing to approve as a revision to their respective State Implementation Plans (SIPs) the common maintenance plan submitted by the States to show maintenance of the 1997 annual PM 2.5 NAAQS through 2025 for the Washington Area. The Washington Area maintenance plan includes motor vehicle emissions budgets (MVEBs) for PM 2.5 and nitrogen oxides (NO X ) for the Area for the 1997 annual PM 2.5 standard, which EPA is proposing to approve for transportation conformity purposes. These actions are being taken under the Clean Air Act (CAA).

The Environmental Protection Agency (EPA) is approving the State of Delaware's requests to redesignate to attainment the Delaware portion of the Philadelphia-Wilmington, PA-NJ-DE nonattainment area (hereafter “the Philadelphia Area” or “the Area”) for both the 1997 annual and the 2006 24-hour fine particulate matter (PM 2.5 ) National Ambient Air Quality Standards (NAAQS or standards). EPA is also approving as revisions to the Delaware State Implementation Plan (SIP), the associated maintenance plans to show maintenance of the 1997 annual and the 2006 24-hour PM 2.5 NAAQS through 2025 for the Delaware portion of the Area. EPA is also proposing to approve the motor vehicle emissions budgets (MVEBs) included in Delaware's maintenance plans for the Delaware portion of the Area for both the 1997 annual and 2006 24-hour PM 2.5 standards. EPA is also determining that the Delaware portion of the Philadelphia Area continues to attain both the 1997 annual and the 2006 24-hour PM 2.5 NAAQS. In addition, EPA is approving the 2007 emissions inventory for the Delaware portion of the Area for the 2006 24-hour PM 2.5 NAAQS. These actions are being taken under the Clean Air Act (CAA).