40 CFR 81.321 : Protection Of Environment (§ 1.1 To Parts 1851-1899) — (§ 81.1 To Appendix A To Part 81) — Environmental Protection Agency (Continued) (§ 81.1 To Appendix A To Part 81) — Air Programs (Continued) (§ 81.1 To Appendix A To Part 81) — Designation Of Areas For Air Quality Planning Purposes (§ 81.1 To Appendix A To Part 81) — Section 107 Attainment Status Designations (§ 81.300 To § 81.356) — Maryland.

4 Aug 2016

Link to an amendment published at 81 FR 45050, July 12, 2016.

Maryland - TSP

Designated area	Does not meet primary standards	Does not meet secondary standards	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 - 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)	12/15/95	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	12/22/06	Attainment
Queen Anne's County	12/22/06	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	11/15/90	Nonattainment	11/15/90	Severe-15.
Baltimore
City of Baltimore	11/15/90	Nonattainment	11/15/90	Severe-15.
Baltimore County	11/15/90	Nonattainment	11/15/90	Severe-15.
Carroll County	11/15/90	Nonattainment	11/15/90	Severe-15.
Harford County	11/15/90	Nonattainment	11/15/90	Severe-15.
Howard County	11/15/90	Nonattainment	11/15/90	Severe-15.
Kent County and Queen Anne's County Area:
Kent County	10/21/04	Attainment
Queen Anne's County	10/21/04	Attainment
Philadelphia-Wilmington-Trenton Area:
Cecil County	11/15/90	Nonattainment	11/15/90	Severe-15.
Washington, DC Area:
Calvert County		Nonattainment	3/25/03	Severe
Charles County		Nonattainment	3/25/03	Severe
Frederick County		Nonattainment	3/25/03	Severe
Montgomery County		Nonattainment	3/25/03	Severe
Prince George's County		Nonattainment	3/25/03	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 PM2.5 NAAQS

[Primary and secondary]

Designated area	Designation ^a	Classification
Date ¹	Type	Date ²	Type
Baltimore, MD:
Anne Arundel County	12/16/14	Attainment
Baltimore County	12/16/14	Attainment
Carroll County	12/16/14	Attainment
Harford County	12/16/14	Attainment
Howard County	12/16/14	Attainment
City of Baltimore	12/16/14	Attainment
Martinsburg, WV-Hagerstown, MD:
Washington County	12/16/14	Attainment
Washington, DC-MD-VA:
Charles County	10/6/14	Attainment
Frederick County	10/6/14	Attainment
Montgomery County	10/6/14	Attainment
Prince George's County	10/6/14	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 PM2.5 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 PM2.5 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 PM2.5 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 - NO2 (1971 Annual Standard)

Designated area	Does not meet primary standards	Cannot be classified or better than national standards
State of Maryland		X

Maryland - NO2 (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	January 22, 2007	Attainment
Queen Anne's County	January 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
Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE: ²		Nonattainment	6/3/16	Marginal. ⁴
Cecil County
Washington, DC-MD-VA: ²		Nonattainment	6/3/16	Marginal. ⁴
Calvert County
Charles County
Frederick County
Montgomery County
Prince George's County
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 - 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.

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.fdsys.gov.

40 CFR 81.321

[43 FR 40510, Sept. 12, 1978]