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Sulfur Dioxide Maintenance Area Summary
As of August 30, 2011
| Number of | Population | |||||
|---|---|---|---|---|---|---|
| Classification | Areas | Counties | ||||
| Primary, Secondary | 8 | 8 | 248,505 | |||
| Primary | 31 | 37 | 8,271,642 | |||
| Secondary | 6 | 6 | 255,303 | |||
| SUBTOTAL: | 45 | 48 | 8,775,450 | |||
| GRAND TOTAL: | 45 | 48 | 8,775,450 | |||
County and area subtotals and grand totals may not equal sum of parts. Part counties are only counted one time within groupings. Area totals only include full maintenance areas for a multi-state area.
On June 8, 2007, the United States Court of Appeals vacated the Subpart 1 portion of the Phase 1 Rule (Court Order). The Subpart 1 areas in the Greenbook are listed as "Former Subpart 1" until reclassification of the areas is finalized. Proposed reclassifications were published on January 16, 2009 74 FR 2936