Conformity Adequacy Review: Region 1
State Implementation Plan (SIP) Submissions that EPA has Found Adequate or Inadequate
Region 1: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont
For more information about adequacy review, go to the main adequacy page.
Contacts: Ariel Garcia at 617-918-1660, or garcia.ariel@epa.gov.
5 Post Office Sq. Suite 100, Mail Code OEP05-2, Boston, MA 02109-3912
| Connecticut | ||||
|---|---|---|---|---|
| Area | Pollutant | SIP Submission | Finding (date budgets apply) |
Additional Information/ Comments |
| CT portion of the NY - Northern NJ - Long Island, NY - NJ - CT area; CT AND Greater Connecticut area, CT |
1997 8-hour ozone | reasonable further progress and attainment demonstration |
Adequacy Letter (6/27/2008) (pdf)
FR Notice |
The 2009 and 2012 budgets for both CT areas were found adequate for SIP strengthening purposes as described in the June 2, 2008 letter to CTDEP. |
| 2008 8-hour ozone | Attainment demonstration |
Connecticut Adequate Letter (6/14/2017) (pdf)
FR Notice (printed 5/31/2017) |
Budgets found adequate through the adequacy review process. | |
| reasonable further progress and attainment demonstration | Previous adequate 2012 outyear budgets withdrawn effective 3/2/2011. Adequacy Letter (3/2/2011) (pdf) FR Notice |
Previous 2008 ozone RFP budgets remained adequate. | ||
|
CT portion of the NY - NJ - CT area |
pm2.5 | maintenance plan |
Adequacy Letter (2/20/2013) (pdf)
FR Notice (pdf) (189 KB) |
Budgets found adequate through the adequacy review process. |
| early progress SIP |
Adequacy Letter (6/20/2007) (pdf)
FR Notice (pdf) (140 KB) |
Budgets found adequate through the adequacy review process. | ||
| Greater Connecticut area, CT | 2008 8-hour ozone | reasonable further progress | Not Applicable | Adequacy process started in error; the State’s submission did not include actionable budgets. The August, 2020 clean data determination for the area suspended the requirement for the State to submit a reasonable further progress plan. (See 85 FR 41924) |
| Maine | ||||
| Area | Pollutant | SIP Submission |
Finding (date budgets apply) |
Additional Information/ Comments |
| Hancock, Knox, Lincoln, and Waldo Counties (Midcoast) | 8-hour ozone | maintenance plan |
Adequate Letter (10/5/2006) (pdf)
FR Notice |
Budgets found adequate through the adequacy review process. |
| Portland area | 8-hour ozone | maintenance plan |
Adequate Letter (10/5/2006) (pdf)
FR Notice |
Budgets found adequate through the adequacy review process. |
| 5% |
Adequate Letter (9/14/2005) (pdf)
FR Notice (pdf) (147 KB) |
Budgets found adequate through the adequacy review process. | ||
| Massachusetts | ||||
| Area | Pollutant | SIP Submission |
Finding (date budgets apply) |
Additional Information/ Comments |
| Boston - Lawrence - Worcester (E. Mass.) and Springfield (W. Mass.) | 8-hour ozone | further progress and attainment demonstration plan |
Adequate Letter (4/2/2008) (pdf)
FR Notice (pdf) (146 KB) |
Budgets found adequate through the adequacy review process. |
| Springfield (W. Mass.) Area | 1-hour ozone | attainment demonstration | Adequate (02/19/99) |
Determination made under old process. |
| New Hampshire | ||||
| Area | Pollutant | SIP Submission |
Finding (date budgets apply) |
Additional Information/ Comments |
| Boston - Manchester - Portsmouth | 8-hour ozone | maintenance plan |
Adequate Letter (5/29/2012) (pdf)
FR Notice (pdf) (211 KB, published May 14, 2012) |
Budgets found adequate through the adequacy review process. |
| attainment plan |
Adequate Letter (8/12/2008) (pdf)
FR Notice (pdf) (141 KB) |
Budgets found adequate through the adequacy review process. | ||
| Manchester - Nashua | carbon monoxide | limited maintenance plan | Adequate (3/10/14) FR notice (pdf) (254 KB, published March 10, 2014) |
Budgets found adequate through the SIP approval process. |
| maintenance plan |
Adequate Letter (3/15/2000) (pdf)
FR Notice (pdf) (211 KB, published February 29, 2000) FR Notice (pdf) (215 KB, published November 29, 2000) |
Budgets found adequate through the adequacy review process. | ||
| Rhode Island | ||||
| Area | Pollutant | SIP Submission |
Finding (date budgets apply) |
Additional Information/ Comments |
| Providence (All of Rhode Island) Rhode Island Area | 8-hour ozone | reasonable further progress and attainment demonstration plan budgets |
Adequate Letter (7/15/2008) (pdf)
FR Notice (pdf) (148 KB) |
Budgets found adequate through the adequacy review process. |