Abstract: Abstract: Non-attainment and maintenance areas for the United States and its territories. For more detailed information on this dataset, see the Overview Description in the Entity Attribute section of this document.
Purpose: Purpose: To establish the spatial boundaries of each nonattainment and maintenance area.
| Field Number | Attribute | Description | Data Type |
| 0 | FID | Internal feature number. | Long Integer representing an object identifier |
| 1 | Shape | Feature geometry. | Geometry |
| 2 | ID | Sequential Unique Identifier | Double Precision Floating Point |
| 3 | AREA | Area of the polygon | Double Precision Floating Point |
| 4 | AREA_NAME | Name of the NAA as designated by the EPA | Character String |
| 5 | STATE | Primary state in which NAA is found | Character String |
| 6 | EPA_REGION | Primary EPA region in which the NAA is found | Character String |
| 7 | STATUS | Current status of the area as designated by the EPA. | Character String |
| 8 | CLASSIFICA | Severity classification as identified by the EPA. | Character String |
| 9 | ATTAINMENT | Date or year in which the area received its current classification by the EPA. | Character String |
| 10 | COMMENTS | Additional clarifying information on the status or characteristics of the area. | Character String |
| 11 | STFIPS | State FIPS code | Character String |
| 12 | VERSION | Version of the database | Character String |