Conformity Adequacy Review: Region 6
State Implementation Plans (SIP) Submissions that EPA has Found Adequate or Inadequate
Region 6: Arkansas, Louisiana, New Mexico, Oklahoma, Texas
For more information about adequacy review, return to the main adequacy page.
Contact: Jeff Riley, U.S. EPA Region 6, 1201 Elm Street, Suite 500, Dallas, Texas 75270; phone: (214) 665-8542, fax: (214) 665-6655 or email: riley.jeffrey@epa.gov
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Arkansas
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Area
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Pollutant
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SIP Submission
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Finding (date budgets apply)
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Additional Information/ Comments
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| Crittenden County | 2008 8-hour ozone | maintenance plan | Adequate (04/25/2016) 81 FR 24030 (printed 4/25/2016) |
Budgets found adequate through the SIP approval process |
| 8-hour ozone | maintenance plan | Adequate (5/22/2009) Letter FR Notice |
Budgets found adequate through the adequacy review process. | |
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Louisiana
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Area
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Pollutant
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SIP Submission
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Finding (date budgets apply)
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Additional Information/ Comments
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| Baton Rouge | 2008 8-hour ozone | maintenance plan | Adequate (07/14/2016) 81 FR 42350 (printed 6/29/16) Letter |
Budgets found adequate through the adequacy review process |
| 8-hour ozone | maintenance plan | Adequate (11/30/2011) FR Notice |
Budgets found adequate through SIP approval process. | |
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New Mexico
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Area
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Pollutant
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SIP Submission
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Finding (date budgets apply)
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Additional Information/ Comments
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| Albuquerque | carbon monoxide | limited maintenance plan | Adequate (6/13/2005) FR Notice (PDF)(7 pp, 168 K, published April 14, 2005, About PDF) |
Budgets found adequate through SIP approval process. |
| maintenance plan | Adequate (8/21/2003) Letter FR Notice |
Budgets found adequate through the adequacy review process. | ||
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Texas
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Area
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Pollutant
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SIP
Submission |
Finding (date budgets apply)
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Additional Information/ Comments
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| Beaumont - Port Arthur | 8-hour ozone | maintenance plan | Adequate (3/6/2013) FR Notice |
Budgets found adequate through the SIP approval process. |
| Adequate (4/16/2010) Letter FR Notice |
Budgets found adequate through the adequacy review process. | |||
| Dallas/Fort Worth | 2008 8-hour ozone | attainment demonstration | N/A – no adequacy finding made | Dallas has been reclassified to Severe. This attainment demonstration was for the Serious classification and is therefore no longer required. |
| reasonable further progress plan | Adequate (5/4/2023)
FR Notice (pdf) (281 KB, published April 24, 2023) |
Budgets found adequate through the SIP approval process. | ||
| attainment plan | Adequate (11/23/2016)
81 FR 78591 (printed 11/8/2016) |
Budgets found adequate through the adequacy review process | ||
reasonable further progress plan |
Adequate (1/26/2016) 81 FR 1184 (printed 1/11/2016) Letter |
Budgets found adequate through the adequacy review process | ||
| 1997 8-hour ozone | attainment plan and reasonable further progress plan | Adequate (2/19/2013) Letter FR Notice |
Budgets found adequate through the adequacy review process. | |
| Adequate (4/7/2008) Letter FR Notice |
Budgets found adequate through the adequacy review process. | |||
| 5% increment of progress | Adequate (6/16/2005) Letter FR Notice |
Budgets found adequate through the adequacy review process. | ||
| El Paso | carbon monoxide | maintenance plan | Adequate (10/3/2008) FR Notice |
Budgets found adequate through the SIP approval process. |
| Adequacy finding withdrawn (3/26/2007) FR Notice |
Effective date of withdrawal is March 26, 2007. | |||
| section 179B international border plan | Adequate (11/1/1999) Letter FR Notice |
Budgets found adequate through the adequacy review process. | ||
| Houston - Galveston - Brazoria | 2008 8-hour ozone | reasonable further progress plan |
Adequate (6/9/2021) |
Budgets found adequate through the SIP approval process |
| attainment demonstration | N/A – no adequacy finding made | Houston area has been reclassified to Severe. This attainment demonstration was for the Serious classification, and is therefore no longer required. | ||
| reasonable further progress | Adequate (6/21/17) Letter FR Notice (printed 6/6/17) |
Budgets found adequate through the adequacy review process. | ||
| 1997 8-hour ozone | reasonable further progress plan and attainment demonstration | Adequate (8/19/2013) Letter FR Notice |
Budgets found adequate through the adequacy review process. | |
| Adequate (2/9/2011) Letter FR Notice |
Budgets found adequate through the adequacy review process. | |||
| reasonable further progress plan | Adequate (4/7/2008) Letter FR Notice |
Budgets found adequate through the adequacy review process. | ||