Maryland.

Maryland—TSP Designated area Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standards Metropolitan Baltimore Intrastate AQCR: (a) Baltimore City: #111 Zones 61, 65-68 1 X #112 Zone 72 X #113 Zones 76-80 X #117 Zones 94-100, 102, 103, 105-11 X #118 Zones 114-137 X #119 Zones 138, 140, 144, 146, 149 X Zones 139, 141-143, 145, 147, 150-56 X #120 Zones 157-66 X #121 Zones 168-70, 172, 176-78, 180, 181 X Zones 167, 171, 173-75, 179, 182 X #123 Zones 187-90 X #Zones 193-198 X Zones 191, 192 X #125 Zones 199-203 X #126 Zone 207 X Zones 204-06 X (b) Baltimore County: #325 Zones 417, 418, 420, 421 X #326 Zones 428, 431 X #328 Zone 446 X #329 Zones 449, 453-58 X Zones 450-52, 459 X #330 Zones 461, 462 X Zones 460, 463-68 X #331 Zones 469-72 X (c) Anne Arundel County: #201 Zones 208, 209 X #203 Zones 221-28 X #204 Zones 230 X (d) Remainder of AQCR X Cumberland-Keyser Interstate AQCR: (a) Election District No. 8, Luke, MD X (b) Remainder AQCR X Central Maryland Interstate AQCR X National Capital Interstate AQCR X Southern Maryland Intrastate AQCR X Eastern Shore Intrastate AQCR X 1 Regional Planning Districts—defined by the Baltimore Regional Planning Council, Maps showing Districts and non-attainment areas available for inspection at the offices of: EPA, Region III, 6th and Walnut Streets, Phila., Pa. 19106; Md. Bureau of Air Quality and Noise Control, 201 West Preston Street, Baltimore, Md. 21201. Maryland—1971 Sulfur Dioxide NAAQS [Primary and Secondary] Designated area Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standards Cumberland-Keyser Interstate AQCR, Election District No. 8, Luke, Md X Remainder of State X Maryland—2010 Sulfur Dioxide NAAQS [Primary] Designated area 1 Designation Date 2 Type Anne Arundel County and Baltimore County, MD 1 9/12/2016 Nonattainment. Anne Arundel County (part) Portions of Anne Arundel County that are within 26.8 kilometers of Herbert A. Wagner's Unit 3 stack, which is located at 39.17765 N. latitude, 76.52752 W. longitude Baltimore County (part) Portions of Baltimore County that are within 26.8 kilometers of Herbert A. Wagner's Unit 3 stack, which is located at 39.17765 N. latitude, 76.52752 W. longitude Allegany County 4/30/2021 Attainment/Unclassifiable. Anne Arundel County (part) Attainment/Unclassifiable. Remainder of County Baltimore City, MD 9/12/2016 Attainment/Unclassifiable. Baltimore County (part) Attainment/Unclassifiable. Remainder of County Calvert County Attainment/Unclassifiable. Caroline County Attainment/Unclassifiable. Carroll County Attainment/Unclassifiable. Cecil County Attainment/Unclassifiable. Charles County Attainment/Unclassifiable. Dorchester County Attainment/Unclassifiable. Frederick County Attainment/Unclassifiable. Garrett County Attainment/Unclassifiable. Harford County Attainment/Unclassifiable. Howard County Attainment/Unclassifiable. Kent County Attainment/Unclassifiable. Montgomery County Attainment/Unclassifiable. Prince George's County Attainment/Unclassifiable. Queen Anne's County Attainment/Unclassifiable. Somerset County Attainment/Unclassifiable. St. Mary's County Attainment/Unclassifiable. Talbot County Attainment/Unclassifiable. Washington County Attainment/Unclassifiable. Wicomico County Attainment/Unclassifiable. Worcester County Attainment/Unclassifiable. 1 Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2 This date is April 9, 2018, unless otherwise noted. Maryland—Carbon Monoxide Designated area Designation Classification Date 1 Type Date 1 Type Baltimore Area Baltimore City (part) Regional Planning District No. 118 (generally corresponding to the Central Business District) 12/15/1995 Attainment Washington Area Montgomery County (part) Election Districts 4, 7, 13 Attainment Prince George's County (part) Election Districts 2, 6, 12, 16, 17, 18 Attainment AQCR 047 National Capital Interstate (Remainder of) Unclassifiable/Attainment Montgomery County (part) Remainder of county Prince George's County (part) Remainder of County AQCR 112 Central Maryland Intrastate Unclassifiable/Attainment Frederick County AQCR 113 Cumberland-Keyser Interstate Unclassifiable/Attainment Allegany County Garrett County Washington County AQCR 114 Eastern Shore Interstate Unclassifiable/Attainment Caroline County Cecil County Dorchester County Kent County Queen Anne's County Kent County 12/22/2006 Attainment Queen Anne's County 12/22/2006 Attainment Somerset County Talbot County Wicomico County Worcester County AQCR 115 Metro. Baltimore Intrastate (Remainder of) Unclassifiable/Attainment Anne Arundel County Baltimore City (part) Remainder of City Baltimore County Carroll County Harford County Howard County AQCR 116 Southern Maryland Intrastate Unclassifiable/Attainment Calvert County Charles County St. Mary's County 1 This date is November 15, 1990, unless otherwise noted. Maryland—Ozone (1-Hour Standard) 2 Designated area Designation Classification Date 1 Type Date 1 Type Baltimore Area: Anne Arundel County 11/15/1990 Nonattainment 11/15/1990 Severe-15. Baltimore City of Baltimore 11/15/1990 Nonattainment 11/15/1990 Severe-15. Baltimore County 11/15/1990 Nonattainment 11/15/1990 Severe-15. Carroll County 11/15/1990 Nonattainment 11/15/1990 Severe-15. Harford County 11/15/1990 Nonattainment 11/15/1990 Severe-15. Howard County 11/15/1990 Nonattainment 11/15/1990 Severe-15. Kent County and Queen Anne's County Area: Kent County 10/21/2004 Attainment Queen Anne's County 10/21/2004 Attainment Philadelphia-Wilmington-Trenton Area: Cecil County 11/15/1990 Nonattainment 11/15/1990 Severe-15. Washington, DC Area: Calvert County Nonattainment 3/25/2003 Severe Charles County Nonattainment 3/25/2003 Severe Frederick County Nonattainment 3/25/2003 Severe Montgomery County Nonattainment 3/25/2003 Severe Prince George's County Nonattainment 3/25/2003 Severe AQCR 113 Cumberland-Keyser Interstate Unclassifiable/Attainment Allegany County Garrett County Washington County AQCR 114 Eastern Shore Interstate (Remainder of) Unclassifiable/Attainment Caroline County Dorchester County Somerset County Talbot County Wicomico County Worcester County AQCR 116 Southern Maryland Intrastate (Remainder of) Unclassifiable/Attainment St. Mary's County 1 This date is October 18, 2000, unless otherwise noted. 2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Maryland except the Washington Co. area where it is revoked effective April 15, 2009. Maryland—1997 Annual PM 2.5 NAAQS [Primary and Secondary] Designated area Designation a Classification Date 1 Type Date 2 Type Baltimore, MD: Anne Arundel County 12/16/2014 Attainment Baltimore County 12/16/2014 Attainment Carroll County 12/16/2014 Attainment Harford County 12/16/2014 Attainment Howard County 12/16/2014 Attainment City of Baltimore 12/16/2014 Attainment Martinsburg, WV-Hagerstown, MD: Washington County 12/16/2014 Attainment Washington, DC-MD-VA: Charles County 10/6/2014 Attainment Frederick County 10/6/2014 Attainment Montgomery County 10/6/2014 Attainment Prince George's County 10/6/2014 Attainment AQCR 113 Cumberland-Keyser Interstate: Allegany County Unclassifiable/Attainment. Garrett County Unclassifiable/Attainment. AQCR 114 Eastern Shore Interstate (remainder of): Caroline County Unclassifiable/Attainment. Cecil County Unclassifiable/Attainment. Dorchester County Unclassifiable/Attainment. Kent County Unclassifiable/Attainment. Queen Anne's County Unclassifiable/Attainment. Somerset County Unclassifiable/Attainment. Talbot County Unclassifiable/Attainment. Wicomico County Unclassifiable/Attainment. Worcester County Unclassifiable/Attainment. AQCR 116 Southern Maryland Intrastate (remainder of): Calvert County Unclassifiable/Attainment. St. Mary's County Unclassifiable/Attainment. a Includes Indian Country located in each county or area, except as otherwise specified. 1 This date is 90 days after January 5, 2005, unless otherwise noted. 2 This date is July 2, 2014, unless otherwise noted. Maryland—2012 Annual PM 2.5 NAAQS [Primary] Designated area 1 Designation Classification Date 2 Type Date 2 Type AQCR 047 National Capital Interstate (DC-MD-VA) (part): Montgomery County Unclassifiable/Attainment Prince George's County Unclassifiable/Attainment Metropolitan Baltimore Intrastate AQCR: Anne Arundel County Unclassifiable/Attainment Baltimore County Unclassifiable/Attainment City of Baltimore Unclassifiable/Attainment Carroll County Unclassifiable/Attainment Harford County Unclassifiable/Attainment Howard County Unclassifiable/Attainment AQCR 112 Central Maryland Intrastate: Frederick County Unclassifiable/Attainment AQCR 113 Cumberland-Keyser Interstate: Allegany County Unclassifiable/Attainment Garrett County Unclassifiable/Attainment Washington County Unclassifiable/Attainment AQCR 114 Eastern Shore Intrastate: Caroline County Unclassifiable/Attainment Cecil County Unclassifiable/Attainment Dorchester County Unclassifiable/Attainment Kent County Unclassifiable/Attainment Queen Anne's County Unclassifiable/Attainment Somerset County Unclassifiable/Attainment Talbot County Unclassifiable/Attainment Wicomico County Unclassifiable/Attainment Worcester County Unclassifiable/Attainment AQCR 116 Southern Maryland Intrastate: Calvert County Unclassifiable/Attainment Charles County Unclassifiable/Attainment St. Mary's County Unclassifiable/Attainment 1 Includes areas of Indian country located in each county or area, except as otherwise specified. 2 This date is April 15, 2015, unless otherwise noted. Maryland—1997 24-Hour PM 2.5 NAAQS [Primary and Secondary] Designated area Designation a Classification Date 1 Type Date Type AQCR 047 National Capital Interstate (DC-MD-VA) (part): Montgomery County Unclassifiable/Attainment. Prince George's County Unclassifiable/Attainment. Metropolitan Baltimore Intrastate AQCR: Anne Arundel County Unclassifiable/Attainment. Baltimore County Unclassifiable/Attainment. City of Baltimore Unclassifiable/Attainment. Carroll County Unclassifiable/Attainment. Harford County Unclassifiable/Attainment. Howard County Unclassifiable/Attainment. AQCR 112 Central Maryland Intrastate: Frederick County Unclassifiable/Attainment. AQCR 113 Cumberland-Keyser Interstate: Allegany County Unclassifiable/Attainment. Garrett County Unclassifiable/Attainment. Washington County Unclassifiable/Attainment. AQCR 114 Eastern Shore Intrastate: Caroline County Unclassifiable/Attainment. Cecil County Unclassifiable/Attainment. Dorchester County Unclassifiable/Attainment. Kent County Unclassifiable/Attainment. Queen Anne's County Unclassifiable/Attainment. Somerset County Unclassifiable/Attainment. Talbot County Unclassifiable/Attainment. Wicomico County Unclassifiable/Attainment. Worcester County Unclassifiable/Attainment. AQCR 116 Southern Maryland Intrastate: Calvert County Unclassifiable/Attainment. Charles County Unclassifiable/Attainment. St. Mary's County Unclassifiable/Attainment. a Includes Indian Country located in each county or area, except as otherwise specified. 1 This date is 90 days after January 5, 2005, unless otherwise noted. Maryland—2006 24-Hour PM 2.5 NAAQS [Primary and Secondary] Designated area Designation a Classification Date 1 Type Date Type AQCR 047 National Capital Interstate (DC-MD-VA) (part): Montgomery County Unclassifiable/Attainment. Prince George's County Unclassifiable/Attainment. Metropolitan Baltimore Intrastate AQCR: Anne Arundel County Unclassifiable/Attainment. Baltimore County Unclassifiable/Attainment. City of Baltimore Unclassifiable/Attainment. Carroll County Unclassifiable/Attainment. Harford County Unclassifiable/Attainment. Howard County Unclassifiable/Attainment. AQCR 112 Central Maryland Intrastate: Frederick County Unclassifiable/Attainment. AQCR 113 Cumberland-Keyser Interstate: Allegany County Unclassifiable/Attainment. Garrett County Unclassifiable/Attainment. Washington County Unclassifiable/Attainment. AQCR 114 Eastern Shore Intrastate: Caroline County Unclassifiable/Attainment. Cecil County Unclassifiable/Attainment. Dorchester County Unclassifiable/Attainment. Kent County Unclassifiable/Attainment. Queen Anne's County Unclassifiable/Attainment. Somerset County Unclassifiable/Attainment. Talbot County Unclassifiable/Attainment. Wicomico County Unclassifiable/Attainment. Worcester County Unclassifiable/Attainment. AQCR 116 Southern Maryland Intrastate: Calvert County Unclassifiable/Attainment. Charles County Unclassifiable/Attainment. St. Mary's County Unclassifiable/Attainment. a Includes Indian Country located in each county or area, except as otherwise specified. 1 This date is 30 days after November 13, 2009, unless otherwise noted. Maryland—NO 2 (1971 Annual Standard) Designated area Does not meet primary standards Cannot be classified or better than national standards State of Maryland X Maryland—NO 2 (2010 1-Hour Standard) Designated area Designation a Date 1 Type Allegany County Unclassifiable/Attainment. Anne Arundel County Unclassifiable/Attainment. Baltimore County Unclassifiable/Attainment. City of Baltimore Unclassifiable/Attainment. Calvert County Unclassifiable/Attainment. Caroline County Unclassifiable/Attainment. Carroll County Unclassifiable/Attainment. Cecil County Unclassifiable/Attainment. Charles County Unclassifiable/Attainment. Dorchester County Unclassifiable/Attainment. Frederick County Unclassifiable/Attainment. Garrett County Unclassifiable/Attainment. Harford County Unclassifiable/Attainment. Howard County Unclassifiable/Attainment. Kent County Unclassifiable/Attainment. Montgomery County Unclassifiable/Attainment. Prince George's County Unclassifiable/Attainment. Queene Anne's County Unclassifiable/Attainment. St. Mary's County Unclassifiable/Attainment. Somerset County Unclassifiable/Attainment. Talbot County Unclassifiable/Attainment. Washington County Unclassifiable/Attainment. Wicomico County Unclassifiable/Attainment. Worchester County Unclassifiable/Attainment. a Includes Indian Country located in each county or area, except as otherwise specified. 1 This date is 90 days after October 31, 2011, unless otherwise noted. Maryland—1997 8-Hour Ozone NAAQS [Primary and Secondary] Designated area Designation a Category/classification Date 1 Type Date 1 Type Baltimore, MD: Anne Arundel County Nonattainment ( 5 ) Subpart 2/Serious. 4 City of Baltimore Nonattainment ( 5 ) Subpart 2/Serious. 4 Baltimore County Nonattainment ( 5 ) Subpart 2/Serious. 4 Carroll County Nonattainment ( 5 ) Subpart 2/Serious. 4 Harford County Nonattainment ( 5 ) Subpart 2/Serious. 4 Howard County Nonattainment ( 5 ) Subpart 2/Serious. 4 Kent and Queen Anne's Area Kent County 1/22/2007 Attainment Queen Anne's County 1/22/2007 Attainment Washington County (Hagerstown), MD: Washington County (2) Attainment. Philadelphia-Wilmin-Atlantic Ci, PA-NJ-MD-DE: Cecil County Nonattainment Subpart 2/Moderate. 4 Washington, DC-MD-VA: Calvert County Nonattainment Subpart 2/Moderate. Charles County Nonattainment Subpart 2/Moderate. Frederick County Nonattainment Subpart 2/Moderate. Montgomery County Nonattainment Subpart 2/Moderate. Prince George's County Nonattainment Subpart 2/Moderate. AQCR 113 Cumberland-Keyser Interstate Unclassifiable/Attainment Allegany County Garrett County AQCR 114 Eastern Shore Interstate (remainder of) Unclassifiable/Attainment Caroline County Dorchester County Somerset County Talbot County Wicomico County Worcester County AQCR 116 Southern Maryland Intrastate (remainder of) Unclassifiable/Attainment St. Mary's County a Includes Indian Country located in each county or area, except as otherwise specified. 1 This date is June 15, 2004, unless otherwise noted. 2 Effective April 15, 2008. 3 November 22, 2004. 4 Attainment date is June 15, 2013. 5 Effective March 2, 2012. Maryland—2008 8-Hour Ozone NAAQS [Primary and Secondary] Designated area Designation Classification Date 1 Type Date 1 Type Baltimore, MD: 2 Nonattainment Moderate. Anne Arundel County Baltimore County Baltimore City Carroll County Harford County Howard County Cecil County 2 7/6/2026 Nonattainment 6/3/2016 Marginal. 4 Cecil County Washington, DC-MD-VA: 2 April 15, 2019 Attainment Calvert County 4/15/2019 Attainment Charles County 4/15/2019 Attainment Frederick County 4/15/2019 Attainment Montgomery County 4/15/2019 Attainment Prince George's County 4/15/2019 Attainment AQCR 113 Cumberland-Keyser Interstate 3 Unclassifiable/Attainment Allegany County Garrett County Washington County AQCR 114 Eastern Shore Interstate: (remainder) 3 Unclassifiable/Attainment Caroline County Dorchester County Kent County Queen Anne's County Somerset County Talbot County Wicomico County Worcester County AQCR 116 Southern Maryland Intrastate: (remainder) 3 Unclassifiable/Attainment St. Mary's County 1 This date is July 20, 2012, unless otherwise noted. 2 Excludes Indian country located in each area, unless otherwise noted. 3 Includes any Indian country in each county or area, unless otherwise specified. 4 Attainment date is extended to July 20, 2016. Maryland—2015 8-Hour Ozone NAAQS [Primary and Secondary] Designated area 1 Designation Classification Date 2 Type Date 2 Type Baltimore, MD Nonattainment 8/1/2024 Serious. Anne Arundel County. Baltimore County. Carroll County. Harford County. Howard County. City of Baltimore. Cecil County. 7/6/2026 Nonattainment 7/30/2024 Serious. Washington, DC-MD-VA Nonattainment 11/7/2022 Moderate. Calvert County. Charles County. Fredrick County. Montgomery County. Prince George's County. Allegany County 1/16/2018 Attainment/Unclassifiable Caroline County 1/16/2018 Attainment/Unclassifiable Dorchester County Attainment/Unclassifiable Garrett County 1/16/2018 Attainment/Unclassifiable Kent County Attainment/Unclassifiable Queen Anne's County Attainment/Unclassifiable St. Mary's County Attainment/Unclassifiable Somerset County 1/16/2018 Attainment/Unclassifiable Talbot County Attainment/Unclassifiable Washington County Attainment/Unclassifiable Wicomico County 1/16/2018 Attainment/Unclassifiable Worcester County 1/16/2018 Attainment/Unclassifiable 1 Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country. 2 This date is August 3, 2018, unless otherwise noted. Maryland—2008 Lead NAAQS Designated area Designation for the 2008 NAAQS a Date 1 Type Whole State Unclassifiable/Attainment. a Includes Indian Country located in each county or area, except as otherwise specified. 1 December 31, 2011 unless otherwise noted. [43 FR 40510, Sept. 12, 1978] Editorial Note: For Federal Register citations affecting § 81.321, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.