The Technical Support Documents below support EPA's final Round 3 area designations for the 2010 sulfur dioxide air quality standard.

• Chapters 1 and 2 (PDF)(78 pp, 2 MB)
• Chapter 3 Alabama TSD (PDF)(49 pp, 898 K)
• Chapter 4 Arizona TSD (PDF)(4 pp, 377 K)
• Chapter 5 Arkansas TSD (PDF)(2 pp, 355 K)
• Chapter 6 California TSD (PDF)(4 pp, 239 K)
• Chapter 7 Colorado TSD (PDF)(5 pp, 242 K)
• Chapter 8 Connecticut TSD (PDF)(2 pp, 212 K)
• Chapter 9 Florida TSD (PDF)(83 pp, 4 MB)
• Chapter 10 Georgia TSD (PDF)(32 pp, 2 MB)
• Chapter 11 Guam TSD (PDF)(2 pp, 216 K)
• Chapter 12 Illinois TSD (PDF)(22 pp, 2 MB)
• Chapter 13 Indiana TSD (PDF)(53 pp, 2 MB)
• Chapter 14 Iowa TSD (PDF)(30 pp, 2 MB)
• Chapter 15 Kentucky TSD (PDF)(7 pp, 448 K)
• Chapter 16 Louisiana TSD (PDF)(41 pp, 2 MB)
• Chapter 17 Maine TSD (PDF)(2 pp, 212 K)
• Chapter 18 Maryland TSD (PDF)(3 pp, 236 K)
• Chapter 19 Michigan TSD (PDF)(2 pp, 217 K)
• Chapter 20 Minnesota TSD (PDF)(20 pp, 1 MB)
• Chapter 21 Mississippi TSD (PDF)(2 pp, 216 K)
• Chapter 22 Missouri TSD (PDF)(25 pp, 1 MB)
• Chapter 23 Montana TSD (PDF)(4 pp, 406 K)
• Chapter 24 Navajo Nation TSD (PDF)(2 pp, 217 K)
• Chapter 25 Nebraska TSD (PDF)(26 pp, 2 MB)
• Chapter 26 Nevada TSD (PDF)(2 pp, 220 K)
• Chapter 27 New Hampshire TSD (PDF)(4 pp, 233 K)
• Chapter 28 New Mexico TSD (PDF)(2 pp, 291 K)
• Chapter 29 New York TSD (PDF)(7 pp, 436 K)
• Chapter 30 North Carolina TSD (PDF)(13 pp, 275 K)
• Chapter 31 North Dakota TSD (PDF)(3 pp, 366 K)
• Chapter 32 Ohio TSD (PDF)(46 pp, 2 MB)
• Chapter 33 Oklahoma TSD (PDF)(2 pp, 231 K)
• Chapter 34 Oregon TSD (PDF)(2 pp, 423 K)
• Chapter 35 Pennsylvania TSD (PDF)(6 pp, 423 K)
• Chapter 36 Puerto Rico TSD (PDF)(55 pp, 3 MB)
• Chapter 37 South Carolina TSD (PDF)(2 pp, 218 K)
• Chapter 38 Tennessee TSD (PDF)(2 pp, 218 K)
• Chapter 39 Texas TSD (PDF)(22 pp, 656 K)
• Chapter 40 Utah TSD (PDF)(31 pp, 2 MB)
• Chapter 41 Virginia TSD (PDF)(42 pp, 4 MB)
• Chapter 42 Washington TSD (PDF)(2 pp, 222 K)
• Chapter 43 West Virginia TSD (PDF)(30 pp, 3 MB)
• Chapter 44 Wisconsin TSD (PDF)(7 pp, 303 K)
• Chapter 45 Wyoming TSD (PDF)(4 pp, 459 K)
• Chapter 46 Southern Ute Indian Tribe TSD (PDF)(2 pp, 214 K)