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Conformity Adequacy Review: Region 3

State Implementation Plan (SIP) Submissions that EPA has Found Adequate or Inadequate 
Region 3: Delaware, the District of Columbia, (includes MD and VA) Maryland, Pennsylvania,Virginia, and West Virginia

For more information about adequacy review, return to the main adequacy page.

This page provides a list of state implementation plans that include motor vehicle emission budgets that EPA Region 3 has found either adequate or inadequate for the purposes of transportation conformity.

ContactGregory Becoat, (Delaware, District of Columbia, Maryland, Pennsylvania, Virginia and West Virginia) U.S. EPA Region 3, 1650 Arch St., Philadelphia, PA 19103; Phone: 215-814-2036, fax: 215-814-2101 or becoat.gregory@epa.gov.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.

Delaware
Area Pollutant SIP
Submission
Finding
(date budgets apply)
Additional Information/ Comments
Delaware portion of the Philadelphia - Wilmington area pm2.5 attainment plan Adequate Letter (12/31/2013)
FR Notice
Budgets found adequate through the adequacy review process.
Delaware portion of the Philadelphia - Wilmington - Atlantic City area 8-hour ozone attainment plan Adequate FR Notice (10/05/2012) Budgets found adequate through the SIP approval process.
reasonable further progress Adequate Letter (1/5/2009)
FR Notice
Technical Support Document (1/5/2009) Budgets found adequate through the adequacy review process.
District of Columbia
Area Pollutant SIP
Submission
Finding
(date budgets apply)
Additional Information/ Comments
Washington DC-MD-VA carbon monoxide maintenance plan Adequate FR Notice (6/3/2005) Budgets found adequate through SIP approval process.
2008 8-hour ozone maintenance plan

Adequate FR notice
83 FR 38301
Printed 8/6/18
Effective 8/21/18

Adequate letter(7/18/18)
Corrected letter(7/24/18)

Budgets found adequate through the adequacy review process.

Technical Support Document (7/18/18)

Technical Support Document  Revised (7/24/2018)

1997 8-hour ozone attainment plan Adequate Letter (2/22/2013)
FR Notice
Budgets found adequate through the adequacy review process.
reasonable further progress and attainment demonstration Adequate DC Letter (9/21/2009)
Adequate MD Letter (9/21/2009)
Adequate VA Letter (9/21/2009)
FR Notice
Technical Support Document (9/21/2009)
Budgets were found adequate through the adequacy review process.
Maryland
Area Pollutant SIP
Submission
Finding
(date budgets apply)
Additional Information/ Comments
Baltimore 1997 8-hour ozone RFP demonstration Adequate Letter (3/8/2016)
FR Notice
Budgets found adequate through adequacy review process.
8-hour ozone attainment demonstration Adequate Letter (4/13/2009)
FR Notice
Budgets found adequate through adequacy review process.
carbon monoxide maintenance plan FR Notice Budgets found adequate through SIP approval process.
Cecil County 1997 8-hour ozone attainment demonstration Adequate Letter (4/13/2009)
FR Notice
Budgets found adequate through adequacy review process.
Maryland portion of the Philadelphia - Wilmington - Atlantic City area 1997 8-hour ozone attainment plan Adequate FR Notice  (10/29/2012) Budgets found adequate through SIP approval process.
Kent and Queen Anne's County 1997 8-hour ozone maintenance plan Adequate FR Notice  (12/22/2006) Budgets found adequate through SIP approval process.
Washington DC-MD-VA 2008 8-hour ozone maintenance plan

Adequate FR notice
Printed 8/6/18
Effective 8/21/18

83 FR 38301
Adequate Letter (7/18/18)
Corrected letter (7/24/18) 

Budgets found adequate through the adequacy review process
1997 8-hour ozone attainment plan Adequate MD Letter (2/22/2013)
FR Notice
Budgets found adequate through the adequate review process.
Pennsylvania
Area Pollutant SIP
Submission
Finding
(date budgets apply)
Additional Information/ Comments
Altoona (Blair County) 1997 8-hour ozone maintenance plan Adequate FR Notice (8/01/2007) Budgets found adequate through the SIP approval process.
Erie County 1997 8-hour ozone maintenance plan Adequate FR Notice (10/09/2007) Budgets found adequate through the SIP approval process.
Franklin County 1997 8-hour ozone maintenance plan Adequate FR Notice (07/25/2007) Budgets found adequate through the SIP approval process.
Harrisburg - Lebanon - Carlisle 1997 8-hour ozone maintenance plan Adequate FR Notice (07/25/2007) Budgets found adequate through the SIP approval process.
Johnstown (Cambria County) 1997 8-hour ozone maintenance plan Adequate FR Notice (08/01/2007) Budgets found adequate through the SIP approval process.
Lancaster County 1997 8-hour ozone maintenance plan Adequate FR Notice (07/06/2007) Budgets found adequate through SIP approval process.
Pennsylvania portion of the Philadelphia - Wilmington - Atlantic City area pm2.5 attainment plan Adequate (9/27/2012) Budgets found adequate through the SIP approval process
1997 8-hour ozone reasonable further progress Adequate Letter (1/5/2009)
FR Notice
Technical Support Document (1/5/2009)
Budgets found adequate through the adequacy review process.
Philadelphia carbon monoxide maintenance plan Adequate FR Notice (06/03/2005) Budgets found adequate through SIP approval process.
Pittsburgh 1997 8-hour ozone maintenance plan Plan withdrawn.  
Reading (Berks County) 1997 8-hour ozone maintenance plan Adequate FR Notice (08/24/2007) Budgets found adequate through the SIP approval process.
Tioga County 1997 8-hour ozone maintenance plan Adequate FR Notice (07/06/2007) Budgets found adequate through SIP approval process.
Youngstown - Warren - Sharon (Mercer County, PA portion) 1997 8-hour ozone maintenance plan Adequate FR Notice (10/19/2007) Budgets found adequate through the SIP approval process.
Virginia
Area Pollutant SIP
Submission
Finding
(date budgets apply)
Additional Information/ Comments
Fredericksburg 1997 8-hour ozone maintenance plan Adequate FR Notice (PDF) (4 pp, 155 K, published December 23, 2005,  About PDF) Budgets found adequate through SIP approval process.
Shenandoah National Park 1997 8-hour ozone maintenance plan Adequate FR Notice (1/3/2006) Budgets found adequate through SIP approval process.
Washington DC-MD-VA 2008 8-hour ozone maintenance plan

Adequate FR notice
Printed 8/6/18
Effective 8/21/18

83 FR 38301
Adequate Letter (7/18/18)
Corrected letter (7/24/18)

Budgets found adequate through the adequacy review process
1997 pm2.5 maintenance plan Adequate (5/13/2014)
79 FR 23350 printed 4/28/14 
Budgets found adequate through the adequacy review process.
8-hour ozone attainment plan Adequate VA Letter (2/22/2013)
FR Notice
Budgets found adequate through adequate review process.
West Virginia
Area Pollutant SIP
Submission
Finding
(date budgets apply)
Additional Information/ Comments
Charleston pm2.5 maintenance plan Adequate Letter (12/19/2013)
FR Notice
Regional insignifcance finding for PM2.5 and NOx made through the adequacy review process.
8-hour ozone maintenance plan Adequate FR Notice (PDF) (4 pp, 152 K, published July 11, 2006, About PDF) Budgets found adequate through SIP approval process.
Huntington - Ashland area pm2.5 maintenance plan Adequate FR Notice (12/28/2012) Regional insignifcance finding for PM2.5 and NOx made through the adequacy review process.
Huntington (Cabell and Wayne Counties) 8-hour ozone maintenance plan Adequate FR Notice (09/15/2006) Budgets found adequate through SIP approval process.
Parkersburg pm2.5 maintenance plan Adequate FR Notice (09/12/2013) Regional insignifcance finding for PM2.5 and NOx made through the adequacy review process.
8-hour ozone maintenance plan Adequate FR Notice (05/08/2007) Budgets found adequate through SIP approval process.
Weirton (Brooke and Hancock County) 8-hour ozone maintenance plan Adequate FR Notice (05/14/2007) Budgets found adequate through SIP approval process.
Steubenville-Weirton, OH-WV Area (West Virginia Portion) pm2.5 maintenance plan Adequate Letter (12/19/2013)
FR Notice
Regional insignifcance finding for 2006 PM2.5 and NOx made through the adequacy review process.
Adequate Letter (12/19/2013)
FR Notice
Regional insignifcance finding for 1997 PM2.5 and NOx made through the adequacy review process.
Wheeling pm2.5 maintenance plan Adequate FR Notice (9/30/2013) Regional insignifcance finding for PM2.5 and NOx made through the adequacy review process.
8-hour ozone maintenance plan Adequate FR Notice(5/15/2007) Budgets found adequate through SIP approval process.

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