Northern Mariana Islands—TSP
| Designated area | Does not meet primary standards | Does not meet secondary standards | Cannot be classified | Better than national standards |
|---|---|---|---|---|
| Whole State | 1X |
1EPA designation only.
Northern Mariana Islands—1971 Sulfur Dioxide NAAQS
[Primary and Secondary]
| Designated area | Does not meet primary standards | Does not meet secondary standards | Cannot be classified | Better than national standards |
|---|---|---|---|---|
| Whole State | 1X |
1EPA designation only.
Northern Mariana Islands—2010 Sulfur Dioxide NAAQS
[Primary]
| Designated area1 | Designation | |
|---|---|---|
| Date2 | Type | |
| Territory Wide | Attainment/Unclassifiable. | |
1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country.
2This date is April 9, 2018, unless otherwise noted.
Northern Mariana Islands—Carbon Monoxide
| Designated Area | Designation | Classification | ||
|---|---|---|---|---|
| Date1 | Type | Date1 | Type | |
| Whole State | Unclassifiable/Attainment | |||
1This date is November 15, 1990, unless otherwise noted.
Northern Mariana Islands—Ozone (1-Hour Standard)2
| Designated area | Designation | Classification | ||
|---|---|---|---|---|
| Date1 | Type | Date1 | Type | |
| Whole State | Unclassifiable/Attainment | |||
1This date is October 18, 2000, unless otherwise noted.
2The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Northern Mariana Islands.
Northern Mariana Islands—1997 Annual PM2.5 NAAQS
[Primary and Secondary]
| Designated area | Designationa | Classification | ||
|---|---|---|---|---|
| Date1 | Type | Date | Type | |
| Territory wide: | ||||
| Northern Islands Municipality | Unclassifiable/Attainment. | |||
| Rota Municipality | Unclassifiable/Attainment. | |||
| Saipan Municipality | Unclassifiable/Attainment. | |||
| Tinian Municipality | Unclassifiable/Attainment. | |||
aIncludes Indian Country located in each county or area, except as otherwise specified.
1This date is 90 days after January 5, 2005, unless otherwise noted.
Northern Mariana Islands—2012 Annual PM2.5 NAAQS
[Primary]
| Designated area1 | Designation | Classification | ||
|---|---|---|---|---|
| Date2 | Type | Date2 | Type | |
| Territory wide: | ||||
| Northern Islands Municipality | Unclassifiable/Attainment | |||
| Rota Municipality | Unclassifiable/Attainment | |||
| Saipan Municipality | Unclassifiable/Attainment | |||
| Tinian Municipality | Unclassifiable/Attainment | |||
1Includes areas of Indian country located in each county or area, except as otherwise specified.
2This date is April 15, 2015, unless otherwise noted.
Northern Mariana Islands—1997 24-Hour PM2.5 NAAQS
[Primary and Secondary]
| Designated area | Designationa | Classification | ||
|---|---|---|---|---|
| Date1 | Type | Date | Type | |
| Territory wide: | ||||
| Northern Islands Municipality | Unclassifiable/Attainment. | |||
| Rota Municipality | Unclassifiable/Attainment. | |||
| Saipan Municipality | Unclassifiable/Attainment. | |||
| Tinian Municipality | Unclassifiable/Attainment. | |||
aIncludes Indian Country located in each county or area, except as otherwise specified.
1This date is 90 days after January 5, 2005, unless otherwise noted.
Northern Mariana Islands—2006 24-Hour PM2.5 NAAQS
[Primary and Secondary]
| Designated area | Designationa | Classification | ||
|---|---|---|---|---|
| Date1 | Type | Date | Type | |
| Territory wide: | ||||
| Northern Islands Municipality | Unclassifiable/Attainment. | |||
| Rota Municipality | Unclassifiable/Attainment. | |||
| Saipan Municipality | Unclassifiable/Attainment. | |||
| Tinian Municipality | Unclassifiable/Attainment. | |||
aIncludes Indian Country located in each county or area, except as otherwise specified.
1This date is 30 days after November 13, 2009, unless otherwise noted.
Northern Mariana Islands—NO2 (1971 Annual Standard)
| Designated area | Does not meet primary standards | Cannot be classified or better than national standards |
|---|---|---|
| Whole State | 1X |
1EPA designation only.
Northern Mariana Islands—NO2 (2010 1-Hour Standard)
| Designated area | Designationa | |
|---|---|---|
| Date1 | Type | |
| Northern Mariana Islands | Unclassifiable/Attainment. | |
aIncludes Indian Country located in each county or area, except as otherwise specified.
1This date is 90 days after October 31, 2011, unless otherwise noted.
Northern Mariana Islands—1997 8-Hour Ozone NAAQS
[Primary and Secondary]
| Designated area | Designation | Category/classification | ||
|---|---|---|---|---|
| Date1 | Type | Date1 | Type | |
| Whole State | Unclassifiable/Attainment | |||
1This date is June 15, 2004, unless otherwise noted.
Northern Mariana Islands—2008 8-Hour Ozone NAAQS
[Primary and Secondary]
| Designated area | Designation | Classification | ||
|---|---|---|---|---|
| Date1 | Type | Date1 | Type | |
| Northern Mariana Islands and Any Areas of Indian Country | Unclassifiable/Attainment | |||
1This date is July 20, 2012, unless otherwise noted.
Northern Mariana Islands—2015 8-Hour Ozone NAAQS
[Primary and Secondary]
| Designated area1 | Designation | Classification | ||
|---|---|---|---|---|
| Date2 | Type | Date | Type | |
| Northern Mariana Islands | Attainment/Unclassifiable | |||
1Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country.
2This date is January 16, 2018, unless otherwise noted.
Northern Mariana Islands—2008 Lead NAAQS
| Designated area | Designation for the 2008 NAAQSa | |
|---|---|---|
| Date1 | Type | |
| Whole State | Unclassifiable/Attainment. | |
aIncludes Indian Country located in each county or area, except as otherwise specified.
1December 31, 2011 unless otherwise noted.
[43 FR 8964, Mar. 3, 1978]
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