U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
Policy Information
| State | Area Name | Pollutant Standard |
|---|---|---|
| Alabama | Birmingham, AL | Ozone_8-hr.1997.Birmingham |
| Alabama | Birmingham, AL | PM-2.5.1997.Birmingham |
| Alabama | Birmingham, AL | PM-2.5.2006.Birmingham |
| Alaska | Fairbanks, AK | PM-2.5.2006.Fairbanks |
| Arizona | Nogales, AZ | PM-2.5.2006.Nogales |
| Arizona | Phoenix-Mesa, AZ | Ozone_8-hr.1997.Phoenix |
| Arkansas | Memphis, TN-AR | Ozone_8-hr.1997.Memphis |
| California | Amador and Calaveras Cos., CA: (Central Moun | Ozone_8-hr.1997.Amador_and_Calaveras_Cos |
| California | Chico, CA | Ozone_8-hr.1997.Chico |
| California | Chico, CA | PM-2.5.2006.Chico |
| California | Imperial Co, CA | PM-2.5.2006.Imperial_Co |
| California | Imperial Co., CA | Ozone_8-hr.1997.Imperial_Co |
| California | Kern County (Eastern Kern), CA | Ozone_8-hr.1997.East_Kern |
| California | Los Angeles, CA | PM-2.5.2006.LA-South_Coast |
| California | Los Angeles-San Bernardino Cos. (W Mojave De | Ozone_8-hr.1997.LA-Desert |
| California | Los Angeles-South Coast Air Basin, CA | Ozone_8-hr.1997.LA-South_Coast |
| California | Los Angeles-South Coast Air Basin, CA | PM-2.5.1997.LA-South_Coast |
| California | Mariposa and Tuolumne Cos., CA: (Southern Mo | Ozone_8-hr.1997.Mariposa_and_Tuolumne_Cos |
| California | Nevada County (Western part), CA | Ozone_8-hr.1997.Nevada_Co |
| California | Riverside Co. (Coachella Valley), CA | Ozone_8-hr.1997.Coachella_Valley |
| California | Sacramento Metro, CA | Ozone_8-hr.1997.Sacramento |
| California | Sacramento, CA | PM-2.5.2006.Sacramento |
| California | San Diego, CA | Ozone_8-hr.1997.San_Diego |
| California | San Francisco Bay Area, CA | Ozone_8-hr.1997.San_Francisco |
| California | San Francisco Bay Area, CA | PM-2.5.2006.San_Francisco |
| California | San Joaquin Valley, CA | Ozone_8-hr.1997.San_Joaquin_Valley |
| California | San Joaquin Valley, CA | PM-2.5.1997.San_Joaquin_Valley |
| California | San Joaquin Valley, CA | PM-2.5.2006.San_Joaquin_Valley |
| California | Sutter County (Sutter Buttes), CA | Ozone_8-hr.1997.Sutter_Buttes |
| California | Ventura County, CA | Ozone_8-hr.1997.Ventura_Co |
| California | Yuba City-Marysville, CA | PM-2.5.2006.Yuma |
| Colorado | Denver-Boulder-Greeley-Ft.Collins-Love., CO | Ozone_8-hr.1997.Denver |
| Connecticut | Greater Connecticut, CT | Ozone_8-hr.1997.Connecticut |
| Connecticut | New York, NY-NJ-CT | PM-2.5.2006.New_York |
| Connecticut | New York-N. New Jersey-Long Island, NY-NJ-CT | Ozone_8-hr.1997.New_York |
| Connecticut | New York-N. New Jersey-Long Island, NY-NJ-CT | PM-2.5.1997.New_York |
| Delaware | Philadelphia-Wilmington, PA-NJ-DE | PM-2.5.1997.Philadelphia |
| Delaware | Philadelphia-Wilmington, PA-NJ-DE | PM-2.5.2006.Philadelphia |
| District of Columbia | Washington, DC-MD-VA | Ozone_8-hr.1997.Washington |
| District of Columbia | Washington, DC-MD-VA | PM-2.5.1997.Washington |
| Georgia | Atlanta, GA | Ozone_8-hr.1997.Atlanta |
| Georgia | Atlanta, GA | PM-2.5.1997.Atlanta |
| Georgia | Chattanooga, TN-GA | Ozone_8-hr.1997.Chattanooga |
| Georgia | Chattanooga, TN-GA | PM-2.5.1997.Chattanooga |
| Georgia | Macon, GA | Ozone_8-hr.1997.Macon |
| Georgia | Macon, GA | PM-2.5.1997.Macon |
| Georgia | Murray Co. (Chattahoochee Nat Forest), GA | Ozone_8-hr.1997.Murray_Co |
| Georgia | Rome, GA | PM-2.5.1997.Rome |
| Idaho | Logan, UT-ID | PM-2.5.2006.Logan |
| Illinois | Chicago-Gary-Lake County, IL-IN | Ozone_8-hr.1997.Chicago |
| Illinois | Chicago-Gary-Lake County, IL-IN | PM-2.5.1997.Chicago |
| Illinois | St. Louis, MO-IL | Ozone_8-hr.1997.St_Louis |
| Illinois | St. Louis, MO-IL | PM-2.5.1997.St_Louis |
| Indiana | Chicago-Gary-Lake County, IL-IN | Ozone_8-hr.1997.Chicago |
| Indiana | Chicago-Gary-Lake County, IL-IN | PM-2.5.1997.Chicago |
| Indiana | Cincinnati-Hamilton, OH-KY-IN | Ozone_8-hr.1997.Cincinnati |
| Indiana | Cincinnati-Hamilton, OH-KY-IN | PM-2.5.1997.Cincinnati |
| Indiana | Evansville, IN | Ozone_8-hr.1997.Evansville |
| Indiana | Evansville, IN | PM-2.5.1997.Evansville |
| Indiana | Fort Wayne, IN | Ozone_8-hr.1997.Fort_Wayne |
| Indiana | Greene Co., IN | Ozone_8-hr.1997.Greene_Co_IN |
| Indiana | Indianapolis, IN | Ozone_8-hr.1997.Indianapolis |
| Indiana | Indianapolis, IN | PM-2.5.1997.Indianapolis |
| Indiana | Jackson Co., IN | Ozone_8-hr.1997.Jackson_Co |
| Indiana | La Porte Co., IN | Ozone_8-hr.1997.La_Porte_Co |
| Indiana | Louisville, KY-IN | Ozone_8-hr.1997.Louisville |
| Indiana | Louisville, KY-IN | PM-2.5.1997.Louisville |
| Indiana | Muncie, IN | Ozone_8-hr.1997.Muncie |
| Indiana | South Bend-Elkhart, IN | Ozone_8-hr.1997.South_Bend |
| Indiana | Terre Haute, IN | Ozone_8-hr.1997.Terre_Haute |
| Kentucky | Cincinnati-Hamilton, OH-KY-IN | Ozone_8-hr.1997.Cincinnati |
| Kentucky | Cincinnati-Hamilton, OH-KY-IN | PM-2.5.1997.Cincinnati |
| Kentucky | Clarkesville-Hopkinsville, TN-KY | Ozone_8-hr.1997.Clarksville |
| Kentucky | Huntington-Ashland, WV-KY | Ozone_8-hr.1997.Huntington |
| Kentucky | Huntington-Ashland, WV-KY-OH | PM-2.5.1997.Huntington |
| Kentucky | Louisville, KY-IN | Ozone_8-hr.1997.Louisville |
| Kentucky | Louisville, KY-IN | PM-2.5.1997.Louisville |
| Louisiana | Baton Rouge, LA | Ozone_8-hr.1997.Baton_Rouge |
| Maine | Hancock, Knox, Lincoln and Waldo Cos., ME | Ozone_8-hr.1997.Central_Maine_Coast |
| Maine | Portland, ME | Ozone_8-hr.1997.Portland_ME |
| Maryland | Baltimore, MD | Ozone_8-hr.1997.Baltimore |
| Maryland | Baltimore, MD | PM-2.5.1997.Baltimore |
| Maryland | Kent and Queen Anne's Cos., MD | Ozone_8-hr.1997.Kent_and_Queen_Annes_Cos |
| Maryland | Martinsburg, WV-Hagerstown, MD | PM-2.5.1997.Hagerstown |
| Maryland | Philadelphia-Wilmington-Atlantic Ci, PA-NJ-M | Ozone_8-hr.1997.Philadelphia |
| Maryland | Washington Co. (Hagerstown), MD | Ozone_8-hr.1997.Hagerstown |
| Maryland | Washington, DC-MD-VA | Ozone_8-hr.1997.Washington |
| Maryland | Washington, DC-MD-VA | PM-2.5.1997.Washington |
| Massachusetts | Boston-Lawrence-Worcester (E. Mass), MA | Ozone_8-hr.1997.Boston_MA |
| Massachusetts | Boston-Manchester-Portsmouth (SE), NH | Ozone_8-hr.1997.Boston_NH |
| Massachusetts | Springfield (W. Mass), MA | Ozone_8-hr.1997.Springfield |
| Michigan | Allegan Co., MI | Ozone_8-hr.1997.Allegan_Co |
| Michigan | Benton Harbor, MI | Ozone_8-hr.1997.Benton_Harbor |
| Michigan | Benzie Co., MI | Ozone_8-hr.1997.Benzie_Co |
| Michigan | Cass County, MI | Ozone_8-hr.1997.Cass_Co |
| Michigan | Detroit-Ann Arbor, MI | Ozone_8-hr.1997.Detroit |
| Michigan | Detroit-Ann Arbor, MI | PM-2.5.1997.Detroit |
| Michigan | Detroit-Ann Arbor, MI | PM-2.5.2006.Detroit |
| Michigan | Flint, MI | Ozone_8-hr.1997.Flint |
| Michigan | Grand Rapids, MI | Ozone_8-hr.1997.Grand_Rapids |
| Michigan | Huron Co., MI | Ozone_8-hr.1997.Huron_Co |
| Michigan | Kalamazoo-Battle Creek, MI | Ozone_8-hr.1997.Kalamazoo |
| Michigan | Lansing-East Lansing, MI | Ozone_8-hr.1997.Lansing |
| Michigan | Mason Co, MI | Ozone_8-hr.1997.Mason_Co |
| Michigan | Muskegon, MI | Ozone_8-hr.1997.Muskegon |
| Missouri | St. Louis, MO-IL | Ozone_8-hr.1997.St_Louis |
| Missouri | St. Louis, MO-IL | PM-2.5.1997.St_Louis |
| Montana | Libby, MT | PM-2.5.1997.Libby |
| Nevada | Las Vegas, NV | Ozone_8-hr.1997.Las_Vegas |
| New Hampshire | Boston-Manchester-Portsmouth (SE), NH | Ozone_8-hr.1997.Boston_NH |
| New Jersey | New York, NY-NJ-CT | PM-2.5.2006.New_York |
| New Jersey | New York-N. New Jersey-Long Island, NY-NJ-CT | Ozone_8-hr.1997.New_York |
| New Jersey | New York-N. New Jersey-Long Island, NY-NJ-CT | PM-2.5.1997.New_York |
| New Jersey | Philadelphia-Wilmington, PA-NJ-DE | PM-2.5.1997.Philadelphia |
| New Jersey | Philadelphia-Wilmington, PA-NJ-DE | PM-2.5.2006.Philadelphia |
| New Jersey | Philadelphia-Wilmington-Atlantic Ci, PA-NJ-M | Ozone_8-hr.1997.Philadelphia |
| New York | Albany-Schenectady-Troy, NY | Ozone_8-hr.1997.Albany |
| New York | Buffalo-Niagara Falls, NY | Ozone_8-hr.1997.Buffalo |
| New York | Essex County (Whiteface Mtn.), NY | Ozone_8-hr.1997.Whiteface_Mountain |
| New York | Jamestown, NY | Ozone_8-hr.1997.Jamestown |
| New York | Jefferson County, NY | Ozone_8-hr.1997.Jefferson_Co |
| New York | New York, NY-NJ-CT | PM-2.5.2006.New_York |
| New York | New York-N. New Jersey-Long Island, NY-NJ-CT | Ozone_8-hr.1997.New_York |
| New York | New York-N. New Jersey-Long Island, NY-NJ-CT | PM-2.5.1997.New_York |
| New York | Poughkeepsie, NY | Ozone_8-hr.1997.Poughkeepsie |
| New York | Rochester, NY | Ozone_8-hr.1997.Rochester |
| North Carolina | Charlotte-Gastonia-Rock Hill, NC-SC | Ozone_8-hr.1997.Charlotte |
| North Carolina | Fayetteville, NC | Ozone_8-hr.1997.Fayetteville |
| North Carolina | Greensboro-Winston-Salem-High Point, NC | Ozone_8-hr.1997.Greensboro |
| North Carolina | Greensboro-Winston-Salem-High Point, NC | PM-2.5.1997.Greensboro |
| North Carolina | Haywood and Swain Cos. (Great Smoky NP), NC | Ozone_8-hr.1997.Haywood_and_Swain_Cos |
| North Carolina | Hickory-Morganton-Lenoir, NC | Ozone_8-hr.1997.Hickory |
| North Carolina | Hickory-Morganton-Lenoir, NC | PM-2.5.1997.Hickory |
| North Carolina | Raleigh-Durham-Chapel Hill, NC | Ozone_8-hr.1997.Raleigh |
| North Carolina | Rocky Mount, NC | Ozone_8-hr.1997.Rocky_Mount |
| Ohio | Canton-Massillon, OH | Ozone_8-hr.1997.Canton |
| Ohio | Canton-Massillon, OH | PM-2.5.1997.Canton |
| Ohio | Canton-Massillon, OH | PM-2.5.2006.Canton |
| Ohio | Cincinnati-Hamilton, OH-KY-IN | Ozone_8-hr.1997.Cincinnati |
| Ohio | Cincinnati-Hamilton, OH-KY-IN | PM-2.5.1997.Cincinnati |
| Ohio | Cleveland-Akron-Lorain, OH | Ozone_8-hr.1997.Cleveland |
| Ohio | Cleveland-Akron-Lorain, OH | PM-2.5.1997.Cleveland |
| Ohio | Cleveland-Akron-Lorain, OH | PM-2.5.2006.Cleveland |
| Ohio | Columbus, OH | Ozone_8-hr.1997.Columbus |
| Ohio | Columbus, OH | PM-2.5.1997.Columbus |
| Ohio | Dayton-Springfield, OH | Ozone_8-hr.1997.Dayton |
| Ohio | Dayton-Springfield, OH | PM-2.5.1997.Dayton |
| Ohio | Huntington-Ashland, WV-KY-OH | PM-2.5.1997.Huntington |
| Ohio | Lima, OH | Ozone_8-hr.1997.Lima |
| Ohio | Parkersburg-Marietta, WV-OH | Ozone_8-hr.1997.Parkersburg |
| Ohio | Parkersburg-Marietta, WV-OH | PM-2.5.1997.Parkersburg |
| Ohio | Steubenville-Weirton, OH-WV | Ozone_8-hr.1997.Weirton |
| Ohio | Steubenville-Weirton, OH-WV | PM-2.5.1997.Weirton |
| Ohio | Steubenville-Weirton, OH-WV | PM-2.5.2006.Weirton |
| Ohio | Toledo, OH | Ozone_8-hr.1997.Toledo |
| Ohio | Wheeling, WV-OH | Ozone_8-hr.1997.Wheeling |
| Ohio | Wheeling, WV-OH | PM-2.5.1997.Wheeling |
| Ohio | Youngstown-Warren-Sharon, PA-OH | Ozone_8-hr.1997.Youngstown |
| Oregon | Klamath Falls, OR | PM-2.5.2006.Klamath_Falls |
| Oregon | Oakridge, OR | PM-2.5.2006.Oakridge |
| Pennsylvania | Allentown, PA | PM-2.5.2006.Allentown |
| Pennsylvania | Allentown-Bethlehem-Easton, PA | Ozone_8-hr.1997.Allentown |
| Pennsylvania | Altoona, PA | Ozone_8-hr.1997.Altoona |
| Pennsylvania | Clearfield & Indiana Cos., PA | Ozone_8-hr.1997.Clearfield_and_Indiana_Cos |
| Pennsylvania | Erie, PA | Ozone_8-hr.1997.Erie |
| Pennsylvania | Franklin Co., PA | Ozone_8-hr.1997.Franklin_Co |
| Pennsylvania | Greene Co., PA | Ozone_8-hr.1997.Greene_Co_PA |
| Pennsylvania | Harrisburg-Lebanon-Carlisle, PA | Ozone_8-hr.1997.Harrisburg |
| Pennsylvania | Harrisburg-Lebanon-Carlisle, PA | PM-2.5.1997.Harrisburg |
| Pennsylvania | Harrisburg-Lebanon-Carlisle-York, PA | PM-2.5.2006.Harrisburg |
| Pennsylvania | Johnstown, PA | Ozone_8-hr.1997.Johnstown |
| Pennsylvania | Johnstown, PA | PM-2.5.1997.Johnstown |
| Pennsylvania | Johnstown, PA | PM-2.5.2006.Johnstown |
| Pennsylvania | Lancaster, PA | Ozone_8-hr.1997.Lancaster |
| Pennsylvania | Lancaster, PA | PM-2.5.1997.Lancaster |
| Pennsylvania | Lancaster, PA | PM-2.5.2006.Lancaster |
| Pennsylvania | Liberty-Clairton, PA | PM-2.5.1997.Liberty-Clairton |
| Pennsylvania | Liberty-Clairton, PA | PM-2.5.2006.Liberty-Clairton |
| Pennsylvania | Philadelphia-Wilmington, PA-NJ-DE | PM-2.5.1997.Philadelphia |
| Pennsylvania | Philadelphia-Wilmington, PA-NJ-DE | PM-2.5.2006.Philadelphia |
| Pennsylvania | Philadelphia-Wilmington-Atlantic Ci, PA-NJ-M | Ozone_8-hr.1997.Philadelphia |
| Pennsylvania | Pittsburgh-Beaver Valley, PA | Ozone_8-hr.1997.Pittsburgh |
| Pennsylvania | Pittsburgh-Beaver Valley, PA | PM-2.5.1997.Pittsburgh |
| Pennsylvania | Pittsburgh-Beaver Valley, PA | PM-2.5.2006.Pittsburgh |
| Pennsylvania | Reading, PA | Ozone_8-hr.1997.Reading |
| Pennsylvania | Reading, PA | PM-2.5.1997.Reading |
| Pennsylvania | Scranton-Wilkes-Barre, PA | Ozone_8-hr.1997.Scranton |
| Pennsylvania | State College, PA | Ozone_8-hr.1997.State_College |
| Pennsylvania | Tioga Co., PA | Ozone_8-hr.1997.Tioga_Co |
| Pennsylvania | York, PA | Ozone_8-hr.1997.York |
| Pennsylvania | York, PA | PM-2.5.1997.York |
| Pennsylvania | Youngstown-Warren-Sharon, PA-OH | Ozone_8-hr.1997.Youngstown |
| Rhode Island | Providence (all of RI), RI | Ozone_8-hr.1997.Providence |
| South Carolina | Charlotte-Gastonia-Rock Hill, NC-SC | Ozone_8-hr.1997.Charlotte |
| South Carolina | Columbia, SC | Ozone_8-hr.1997.Columbia |
| South Carolina | Greenville-Spartanburg-Anderson, SC | Ozone_8-hr.1997.Greenville |
| Tennessee | Chattanooga, TN-GA | Ozone_8-hr.1997.Chattanooga |
| Tennessee | Chattanooga, TN-GA | PM-2.5.1997.Chattanooga |
| Tennessee | Clarkesville-Hopkinsville, TN-KY | Ozone_8-hr.1997.Clarksville |
| Tennessee | Johnson City-Kingsport-Bristol, TN | Ozone_8-hr.1997.Johnson_City |
| Tennessee | Knoxville, TN | Ozone_8-hr.1997.Knoxville |
| Tennessee | Knoxville, TN | PM-2.5.1997.Knoxville |
| Tennessee | Knoxville-Sevierville-La Follette, TN | PM-2.5.2006.Knoxville |
| Tennessee | Memphis, TN-AR | Ozone_8-hr.1997.Memphis |
| Tennessee | Nashville, TN | Ozone_8-hr.1997.Nashville |
| Texas | Beaumont/Port Arthur, TX | Ozone_8-hr.1997.Beaumont |
| Texas | Dallas-Fort Worth, TX | Ozone_8-hr.1997.Dallas |
| Texas | Houston-Galveston-Brazoria, TX | Ozone_8-hr.1997.Houston |
| Texas | San Antonio, TX | Ozone_8-hr.1997.San_Antonio |
| Utah | Logan, UT-ID | PM-2.5.2006.Logan |
| Utah | Provo, UT | PM-2.5.2006.Provo |
| Utah | Salt Lake City, UT | PM-2.5.2006.Salt_Lake |
| Virginia | Frederick Co., VA | Ozone_8-hr.1997.Frederick_Co |
| Virginia | Fredericksburg, VA | Ozone_8-hr.1997.Fredericksburg |
| Virginia | Madison & Page Cos. (Shenandoah NP), VA | Ozone_8-hr.1997.Madison_and_Page_Cos |
| Virginia | Norfolk-Virginia Beach-Newport News (Hampton | Ozone_8-hr.1997.Norfolk |
| Virginia | Richmond-Petersburg, VA | Ozone_8-hr.1997.Richmond |
| Virginia | Roanoke, VA | Ozone_8-hr.1997.Roanoke |
| Virginia | Washington, DC-MD-VA | Ozone_8-hr.1997.Washington |
| Virginia | Washington, DC-MD-VA | PM-2.5.1997.Washington |
| Washington | Seattle-Tacoma, WA | PM-2.5.2006.Tacoma |
| West Virginia | Berkeley & Jefferson Cos, WV | Ozone_8-hr.1997.Berkeley_and_Jefferson |
| West Virginia | Charleston, WV | Ozone_8-hr.1997.Charleston |
| West Virginia | Charleston, WV | PM-2.5.1997.Charleston |
| West Virginia | Charleston, WV | PM-2.5.2006.Charleston |
| West Virginia | Huntington-Ashland, WV-KY | Ozone_8-hr.1997.Huntington |
| West Virginia | Huntington-Ashland, WV-KY-OH | PM-2.5.1997.Huntington |
| West Virginia | Martinsburg, WV-Hagerstown, MD | PM-2.5.1997.Hagerstown |
| West Virginia | Parkersburg-Marietta, WV-OH | Ozone_8-hr.1997.Parkersburg |
| West Virginia | Parkersburg-Marietta, WV-OH | PM-2.5.1997.Parkersburg |
| West Virginia | Steubenville-Weirton, OH-WV | Ozone_8-hr.1997.Weirton |
| West Virginia | Steubenville-Weirton, OH-WV | PM-2.5.1997.Weirton |
| West Virginia | Steubenville-Weirton, OH-WV | PM-2.5.2006.Weirton |
| West Virginia | Wheeling, WV-OH | Ozone_8-hr.1997.Wheeling |
| West Virginia | Wheeling, WV-OH | PM-2.5.1997.Wheeling |
| Wisconsin | Door County, WI | Ozone_8-hr.1997.Door_Co |
| Wisconsin | Kewaunee County, WI | Ozone_8-hr.1997.Kewaunee_Co |
| Wisconsin | Manitowoc County, WI | Ozone_8-hr.1997.Manitowoc_Co |
| Wisconsin | Milwaukee-Racine, WI | Ozone_8-hr.1997.Milwaukee |
| Wisconsin | Milwaukee-Racine, WI | PM-2.5.2006.Milwaukee |
| Wisconsin | Sheboygan, WI | Ozone_8-hr.1997.Sheboygan |
