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40 CFR § 81.354 - Northern Mariana Islands. 

---
identifier: "/us/cfr/t40/s81.354"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 81.354 - Northern Mariana Islands."
title_number: 40
title_name: "Protection of Environment"
section_number: "81.354"
section_name: "Northern Mariana Islands."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "C"
subchapter_name: "AIR PROGRAMS"
part_number: "81"
part_name: "DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 7401,"
regulatory_source: "36 FR 22421, Nov. 25, 1971, unless otherwise noted."
cfr_part: "81"
---

# 81.354 Northern Mariana Islands.

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 |  |  |  | X |
| EPA 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 |  |  |  | X |
| EPA designation only. |  |  |  |  |

Northern Mariana Islands—2010 Sulfur Dioxide NAAQS

[Primary]

|  |  |  |
| --- | --- | --- |
| Territory Wide |  | Attainment/Unclassifiable. |
| Includes 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. |  |  |
| This date is April 9, 2018, unless otherwise noted. |  |  |

Northern Mariana Islands—Carbon Monoxide

|  |  |  |  |  |
| --- | --- | --- | --- | --- |
| Whole State |  | Unclassifiable/Attainment |  |  |
| This date is November 15, 1990, unless otherwise noted. |  |  |  |  |

Northern Mariana Islands—Ozone (1-Hour Standard)

|  |  |  |  |  |
| --- | --- | --- | --- | --- |
| Whole State |  | Unclassifiable/Attainment |  |  |
| This date is October 18, 2000, unless otherwise noted. |  |  |  |  |
| The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Northern Mariana Islands. |  |  |  |  |

Northern Mariana Islands—1997 Annual PM NAAQS

[Primary and Secondary]

|  |  |  |  |  |
| --- | --- | --- | --- | --- |
| Territory wide: |  |  |  |  |
| Northern Islands Municipality |  | Unclassifiable/Attainment. |  |  |
| Rota Municipality |  | Unclassifiable/Attainment. |  |  |
| Saipan Municipality |  | Unclassifiable/Attainment. |  |  |
| Tinian Municipality |  | Unclassifiable/Attainment. |  |  |
| Includes Indian Country located in each county or area, except as otherwise specified. |  |  |  |  |
| This date is 90 days after January 5, 2005, unless otherwise noted. |  |  |  |  |

Northern Mariana Islands—2012 Annual PM NAAQS

[Primary]

|  |  |  |  |  |
| --- | --- | --- | --- | --- |
| Territory wide: |  |  |  |  |
| Northern Islands Municipality |  | Unclassifiable/Attainment |  |  |
| Rota Municipality |  | Unclassifiable/Attainment |  |  |
| Saipan Municipality |  | Unclassifiable/Attainment |  |  |
| Tinian Municipality |  | Unclassifiable/Attainment |  |  |
| Includes areas of Indian country located in each county or area, except as otherwise specified. |  |  |  |  |
| This date is April 15, 2015, unless otherwise noted. |  |  |  |  |

Northern Mariana Islands—1997 24-Hour PM NAAQS

[Primary and Secondary]

|  |  |  |  |  |
| --- | --- | --- | --- | --- |
| Territory wide: |  |  |  |  |
| Northern Islands Municipality |  | Unclassifiable/Attainment. |  |  |
| Rota Municipality |  | Unclassifiable/Attainment. |  |  |
| Saipan Municipality |  | Unclassifiable/Attainment. |  |  |
| Tinian Municipality |  | Unclassifiable/Attainment. |  |  |
| Includes Indian Country located in each county or area, except as otherwise specified. |  |  |  |  |
| This date is 90 days after January 5, 2005, unless otherwise noted. |  |  |  |  |

Northern Mariana Islands—2006 24-Hour PM NAAQS

[Primary and Secondary]

|  |  |  |  |  |
| --- | --- | --- | --- | --- |
| Territory wide: |  |  |  |  |
| Northern Islands Municipality |  | Unclassifiable/Attainment. |  |  |
| Rota Municipality |  | Unclassifiable/Attainment. |  |  |
| Saipan Municipality |  | Unclassifiable/Attainment. |  |  |
| Tinian Municipality |  | Unclassifiable/Attainment. |  |  |
| Includes Indian Country located in each county or area, except as otherwise specified. |  |  |  |  |
| This date is 30 days after November 13, 2009, unless otherwise noted. |  |  |  |  |

Northern Mariana Islands—NO (1971 Annual Standard)

| Designated area | Does not meet primary standards | Cannot be classified or better than national standards |
| --- | --- | --- |
| Whole State |  | X |
| EPA designation only. |  |  |

Northern Mariana Islands—NO (2010 1-Hour Standard)

|  |  |  |
| --- | --- | --- |
| Northern Mariana Islands |  | Unclassifiable/Attainment. |
| Includes Indian Country located in each county or area, except as otherwise specified. |  |  |
| This date is 90 days after October 31, 2011, unless otherwise noted. |  |  |

Northern Mariana Islands—1997 8-Hour Ozone NAAQS

[Primary and Secondary]

|  |  |  |  |  |
| --- | --- | --- | --- | --- |
| Whole State |  | Unclassifiable/Attainment |  |  |
| This date is June 15, 2004, unless otherwise noted. |  |  |  |  |

Northern Mariana Islands—2008 8-Hour Ozone NAAQS

[Primary and Secondary]

|  |  |  |  |  |
| --- | --- | --- | --- | --- |
| Northern Mariana Islands and Any Areas of Indian Country |  | Unclassifiable/Attainment |  |  |
| This date is July 20, 2012, unless otherwise noted. |  |  |  |  |

Northern Mariana Islands—2015 8-Hour Ozone NAAQS

[Primary and Secondary]

|  |  |  |  |  |
| --- | --- | --- | --- | --- |
| Northern Mariana Islands |  | Attainment/Unclassifiable |  |  |
| Includes 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. |  |  |  |  |
| This date is January 16, 2018, unless otherwise noted. |  |  |  |  |

Northern Mariana Islands—2008 Lead NAAQS

|  |  |  |
| --- | --- | --- |
| Whole State |  | Unclassifiable/Attainment. |
| Includes Indian Country located in each county or area, except as otherwise specified. |  |  |
| December 31, 2011 unless otherwise noted. |  |  |

[43 FR 8964, Mar. 3, 1978]

For  citations affecting § 81.354, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at