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.
Contact: Gregory 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.
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Delaware
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| 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. | ||
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District of Columbia
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| 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 |
Budgets found adequate through the adequacy review process. Technical Support Document (7/18/18) Technical Support Document Revised (7/24/2018) |
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| 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. |
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Maryland
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| 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 83 FR 38301 |
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. | |
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Pennsylvania
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| 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. |
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| 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. |
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Virginia
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| 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 83 FR 38301 |
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. | |
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West Virginia
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| 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. | |