Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Cancer
    • Chemicals, Toxics, and Pesticide
    • Emergency Response
    • Environmental Information by Location
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History

Breadcrumb

  1. Home
  2. Sulfur Dioxide Designations

Final Technical Support Documents for Area Designations Round 3

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) (1.79 MB)
  • Chapter 3 Alabama TSD (pdf) (877.14 KB)
  • Chapter 4 Arizona TSD (pdf) (367.96 KB)
  • Chapter 5 Arkansas TSD (pdf) (347.04 KB)
  • Chapter 6 California TSD (pdf) (233.73 KB)
  • Chapter 7 Colorado TSD (pdf) (235.95 KB)
  • Chapter 8 Connecticut TSD (pdf) (206.98 KB)
  • Chapter 9 Florida TSD (pdf) (4 MB)
  • Chapter 10 Georgia TSD (pdf) (1.65 MB)
  • Chapter 11 Guam TSD (pdf) (210.7 KB)
  • Chapter 12 Illinois TSD (pdf) (1.47 MB)
  • Chapter 13 Indiana TSD (pdf) (1.47 MB)
  • Chapter 14 Iowa TSD (pdf) (1.67 MB)
  • Chapter 15 Kentucky TSD (pdf) (437.37 KB)
  • Chapter 16 Louisiana TSD (pdf) (1.98 MB)
  • Chapter 17 Maine TSD (pdf) (207.35 KB)
  • Chapter 18 Maryland TSD (pdf) (230.06 KB)
  • Chapter 19 Michigan TSD (pdf) (212.01 KB)
  • Chapter 20 Minnesota TSD (pdf) (1.26 MB)
  • Chapter 21 Mississippi TSD (pdf) (210.83 KB)
  • Chapter 22 Missouri TSD (pdf) (991.65 KB)
  • Chapter 23 Montana TSD (pdf) (396.29 KB)
  • Chapter 24 Navajo Nation TSD (pdf) (212.39 KB)
  • Chapter 25 Nebraska TSD (pdf) (1.85 MB)
  • Chapter 26 Nevada TSD (pdf) (214.64 KB)
  • Chapter 27 New Hampshire TSD (pdf) (227.29 KB)
  • Chapter 28 New Mexico TSD (pdf) (283.98 KB)
  • Chapter 29 New York TSD (pdf) (425.93 KB)
  • Chapter 30 North Carolina TSD (pdf) (268.97 KB)
  • Chapter 31 North Dakota TSD (pdf) (357.16 KB)
  • Chapter 32 Ohio TSD (pdf) (2.09 MB)
  • Chapter 33 Oklahoma TSD (pdf) (225.39 KB)
  • Chapter 34 Oregon TSD (pdf) (413.37 KB)
  • Chapter 35 Pennsylvania TSD (pdf) (413.5 KB)
  • Chapter 36 Puerto Rico TSD (pdf) (2.84 MB)
  • Chapter 37 South Carolina TSD (pdf) (212.61 KB)
  • Chapter 38 Tennessee TSD (pdf) (212.42 KB)
  • Chapter 39 Texas TSD (pdf) (641.07 KB)
  • Chapter 40 Utah TSD (pdf) (2.3 MB)
  • Chapter 41 Virginia TSD (pdf) (3.34 MB)
  • Chapter 42 Washington TSD (pdf) (217.14 KB)
  • Chapter 43 West Virginia TSD (pdf) (2.8 MB)
  • Chapter 44 Wisconsin TSD (pdf) (296.29 KB)
  • Chapter 45 Wyoming TSD (pdf) (447.76 KB)
  • Chapter 46 Southern Ute Indian Tribe TSD (pdf) (209.15 KB)

Sulfur Dioxide Designations

  • Learn About Sulfur Dioxide Designations
  • Regulatory Actions
  • Guidance and Technical Information
  • Where You Live
Contact Us About Sulfur Dioxide Designations
Contact Us About Sulfur Dioxide Designations to ask a question, provide feedback, or report a problem.
Last updated on January 14, 2025
  • Assistance
  • Spanish
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • French
  • Haitian Creole
  • Korean
  • Portuguese
  • Russian
  • Tagalog
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions
  • Site Feedback

Follow.