SIP Status Reports
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Status of Arizona Designated Areas
Status of Arizona Designated Areas
Arizona Areas by NAAQSNOTE: As of 03/12/2021, these reports are no longer being updated. For the latest information, see the SIP Status Tools.
Jump to Arizona section for: CO (1971) Lead (1978) Lead (2008) NO2 (1971) Ozone-1Hr (1979) Ozone-8Hr (1997) Ozone-8Hr (2008) Ozone-8Hr (2015) PM-10 (1987) PM-2.5 (1997) PM-2.5 (2006) PM-2.5 (2012) SO2 (1971) SO2 (2010)
Arizona CO (1971) Areas Return to map |
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Click on the Area name to view SIP Required Elements Area |
Status | Designation Date |
Classification | 2010 Population (state portion) |
Meets NAAQS Basis |
Design Value Annual (ppm) (entire area) |
Meets NAAQS |
SIP Requirements Original/ Approved |
Clean Air Determination Citation Effective Date Click to view FR notice |
Redesignation Request Date |
Redesignation Citation Effective Date Click to view FR notice |
Phoenix Area | Maintenance | 11/15/1990 | Serious | 3,763,324 | 2019 | 2.9 | Yes | 6 / 5 | |
06/16/2003 | 04/08/2005 70 FR 11553 |
Tucson Area | Maintenance | 11/15/1990 | Not Classified | 595,314 | 2019 | 0.9 | Yes | 1 / 1 | |
10/06/1997 | 07/10/2000 65 FR 36353 |
Arizona Lead (1978) Areas Return to map Top of page |
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No designated areas for this pollutant. | |||||||||||
Arizona Lead (2008) Areas Return to map Top of page |
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Click on the Area name to view SIP Required Elements Area |
Status | Designation Date |
Classification | 2010 Population (state portion) |
Meets NAAQS Basis |
Design Value Annual (µg/m3) (entire area) |
Meets NAAQS |
SIP Requirements Original/ Approved |
Clean Air Determination Citation Effective Date Click to view FR notice |
Redesignation Request Date |
Redesignation Citation Effective Date Click to view FR notice |
Hayden | Nonattainment | 10/03/2014 | 4,630 | 2017-2019 | 0.28 | No | 6 / 6 | |
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Arizona NO2 (1971) Areas Return to map Top of page |
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No designated areas for this pollutant. | |||||||||||
Arizona Ozone-1Hr (1979) Areas Return to map Top of page |
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Click on the Area name to view SIP Required Elements Area |
Status | Designation Date |
Classification | 2010 Population (state portion) |
Meets NAAQS Basis |
Design Value Annual (ppm) (entire area) |
Meets NAAQS |
SIP Requirements Original/ Approved |
Clean Air Determination Citation Effective Date Click to view FR notice |
Redesignation Request Date |
Redesignation Citation Effective Date Click to view FR notice |
Phoenix Area | Maintenance (NAAQS revoked) | 11/15/1990 | Serious | 3,763,324 | 2017-2019 | 0.100 | Yes | 22 / 22 | |
04/21/2004 | 06/14/2005 70 FR 34362 |
Arizona Ozone-8Hr (1997) Areas Return to map Top of page |
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Click on the Area name to view SIP Required Elements Area |
Status | Designation Date |
Classification | 2010 Population (state portion) |
Meets NAAQS Basis |
Design Value Annual (ppm) (entire area) |
Meets NAAQS |
SIP Requirements Original/ Approved |
Clean Air Determination Citation Effective Date Click to view FR notice |
Redesignation Request Date |
Redesignation Citation Effective Date Click to view FR notice |
Phoenix-Mesa | Maintenance (NAAQS revoked) | 06/15/2004 | Subpart 2/Marginal | 3,848,627 | 2017-2019 | 0.077 | Yes | 3 / 1 | |
03/23/2009 | 10/17/2014 79 FR 55645 |
Arizona Ozone-8Hr (2008) Areas Return to map Top of page |
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Click on the Area name to view SIP Required Elements Area |
Status | Designation Date |
Classification | 2010 Population (state portion) |
Meets NAAQS Basis |
Design Value Annual (ppm) (entire area) |
Meets NAAQS |
SIP Requirements Original/ Approved |
Clean Air Determination Citation Effective Date Click to view FR notice |
Redesignation Request Date |
Redesignation Citation Effective Date Click to view FR notice |
Phoenix-Mesa | Nonattainment | 07/20/2012 | Moderate | 3,849,627 | 2017-2019 | 0.077 | No | 104 / 92 | 12/12/2019 84 FR 60920 |
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Arizona Ozone-8Hr (2015) Areas Return to map Top of page |
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Click on the Area name to view SIP Required Elements Area |
Status | Designation Date |
Classification | 2010 Population (state portion) |
Meets NAAQS Basis |
Design Value Annual (ppm) (entire area) |
Meets NAAQS |
SIP Requirements Original/ Approved |
Clean Air Determination Citation Effective Date Click to view FR notice |
Redesignation Request Date |
Redesignation Citation Effective Date Click to view FR notice |
Phoenix-Mesa | Nonattainment | 08/03/2018 | Marginal | 3,945,140 | 2017-2019 | 0.077 | No | 4 / 0 | |
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Yuma | Nonattainment | 08/03/2018 | Marginal | 87,254 | 2017-2019 | 0.071 | No | 3 / 0 | |
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Arizona PM-10 (1987) Areas Return to map Top of page |
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Click on the Area name to view SIP Required Elements Area |
Status | Designation Date |
Classification | 2010 Population (state portion) |
Meets NAAQS Basis |
Average Estimated Exceedances (est. exc.) (entire area) |
Meets NAAQS |
SIP Requirements Original/ Approved |
Clean Air Determination Citation Effective Date Click to view FR notice |
Redesignation Request Date |
Redesignation Citation Effective Date Click to view FR notice |
Cochise County; Paul Spur/Douglas planning area | Nonattainment | 11/15/1990 | Moderate | 17,495 | 2017-2019 | 0.3 | Yes | 3 / 1 | 02/10/2011 76 FR 1532 |
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Gila County (part): Payson | Maintenance | 01/20/1994 | Moderate | 5,333 | 2017-2019 | 0.0 | Yes | 3 / 3 | 08/26/2002 67 FR 43013 |
08/26/2002 67 FR 43013 |
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Hayden | Nonattainment | 11/15/1990 | Moderate | 11,048 | 2017-2019 | 2.0 | No | 3 / 1 | 02/10/2011 76 FR 1532 |
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Maricopa and Pinal Counties; Phoenix planning area | Nonattainment | 11/15/1990 | Serious | 3,852,985 | 2017-2019 | 4.3 | No | 4 / 4 | |
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Miami | Nonattainment | 11/15/1990 | Moderate | 15,218 | 2017-2019 | Insufficient Data | 3 / 3 | 05/29/2007 72 FR 14422 |
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Mohave County (part); Bullhead City | Maintenance | 01/20/1994 | Moderate | 10,710 | 2017-2019 | 0.0 | Yes | 3 / 3 | 08/26/2002 67 FR 43020 |
02/07/2002 | 08/26/2002 67 FR 43020 |
Pima County; Ajo planning area | Maintenance | 11/15/1990 | Moderate | 8,823 | 2017-2019 | 0.4 | Yes | 3 / 2 | 04/10/2006 71 FR 6352 |
05/10/2019 | 09/03/2020 85 FR 47032 |
Pima County; Rillito planning area | Nonattainment | 11/15/1990 | Moderate | 588 | 2017-2019 | 1.7 | No | 3 / 2 | 10/10/2006 71 FR 44920 |
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Pinal County (part); West Pinal | Nonattainment | 07/02/2012 | Serious | 283,032 | 2017-2019 | 26.4 | No | 6 / 1 | |
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Santa Cruz County; Nogales planning area | Nonattainment | 11/15/1990 | Moderate | 30,359 | 2017-2019 | 0.7 | Yes | 3 / 2 | 02/10/2011 76 FR 1532 |
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Yuma County; Yuma planning area | Nonattainment | 11/15/1990 | Moderate | 100,710 | 2017-2019 | 5.7 | No | 3 / 1 | 05/15/2006 71 FR 13021 |
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Arizona PM-2.5 (1997) Areas Return to map Top of page |
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No designated areas for this pollutant. | |||||||||||
Arizona PM-2.5 (2006) Areas Return to map Area designated nonattainment for the 24-hour standard Top of page |
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Click on the Area name to view SIP Required Elements Area |
Status | Designation Date |
Classification | 2010 Population (state portion) |
Meets NAAQS Basis |
Design Value 24-Hr (µg/m3) (entire area) |
Meets NAAQS |
SIP Requirements Original/ Approved |
Clean Air Determination Citation Effective Date Click to view FR notice |
Redesignation Request Date |
Redesignation Citation Effective Date Click to view FR notice |
Nogales | Nonattainment | 12/14/2009 | Moderate | 30,622 | 2017-2019 | 26 | Yes | 7 / 2 | 06/09/2017 82 FR 21711 |
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West Central Pinal | Nonattainment | 03/07/2011 | Moderate | 52,314 | 2017-2019 | 34 | Yes | 7 / 1 | 11/04/2019 84 FR 52766 |
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Arizona PM-2.5 (2012) Areas Return to map Top of page |
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No designated areas for this pollutant. | |||||||||||
Arizona SO2 (1971) Areas Return to map Top of page |
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Click on the Area name to view SIP Required Elements Area |
Status | Designation Date |
Classification | 2010 Population (state portion) |
Meets NAAQS Basis |
Design Value Annual/24-Hr (ppb) (entire area) |
Meets NAAQS |
SIP Requirements Original/ Approved |
Clean Air Determination Citation Effective Date Click to view FR notice |
Redesignation Request Date |
Redesignation Citation Effective Date Click to view FR notice |
Ajo | Maintenance | 11/15/1990 | 8,823 | / | 1 / 1 | |
06/18/2002 | 01/02/2004 68 FR 62239 |
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Douglas | Maintenance | 11/15/1990 | 17,495 | / | 1 / 1 | |
12/18/2001 | 05/01/2006 71 FR 9941 |
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Hayden | Nonattainment | 11/15/1990 | 4,844 | 2019 | 5 / 33 | Yes | 1 / 0 | |
06/27/2002 | ||
Miami | Maintenance | 11/15/1990 | 1,514 | / | 1 / 1 | |
06/26/2002 | 03/26/2007 72 FR 3061 |
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Morenci | Maintenance | 11/15/1990 | 8,437 | / | 1 / 1 | |
06/21/2002 | 06/25/2004 69 FR 22447 |
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San Manuel | Maintenance | 11/15/1990 | 16,158 | / | 1 / 1 | |
06/07/2007 | 03/18/2008 73 FR 3396 |
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Arizona SO2 (2010) Areas Return to map Top of page |
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Click on the Area name to view SIP Required Elements Area |
Status | Designation Date |
Classification | 2010 Population (state portion) |
Meets NAAQS Basis |
3 Year 1-Hour Design Value (ppb) (entire area) |
Meets NAAQS |
SIP Requirements Original/ Approved |
Clean Air Determination Citation Effective Date Click to view FR notice |
Redesignation Request Date |
Redesignation Citation Effective Date Click to view FR notice |
Hayden | Nonattainment | 10/04/2013 | 4,630 | 2017-2019 | 226 | No | 6 / 2 | |
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Miami | Nonattainment | 10/04/2013 | 14,995 | 2017-2019 | 172 | No | 6 / 6 | |
We have made our best effort to ensure that the data contained in these reports is accurate. We note that there may be brief delays in
updating the reports as we receive new state submissions and we take rulemaking action on plans. In order to assist us in providing
accurate information, we request that you contact us by clicking on the "Contact Us" link near the top of this page with any comments
regarding or corrections to the posted information, including concerns about whether the entries reflect the most recent status. Current and historical design value data can be found on the EPA Air Quality Design Values website and the EPA Green Book contains comprehensive nonattainment area, designation status, and historical information. The level of the 1-hour NAAQS for sulfur dioxide is 75 parts per billion (ppb) calculated as the 3-year average of the 99th percentile of the annual distribution of daily maximum 1-hour average concentrations. |