Skip to content U.S. Department of Transportation/Federal Highway AdministrationU.S. Department of Transportation/Federal Highway Administration

Office of Planning, Environment, & Realty (HEP)
PlanningEnvironmentReal Estate

HEP Events Guidance Publications Awards Contacts

1997 8-hour Ozone Nonattainment Area Maps

Birmingham, AL
Birmingham, AL
Phoenix-Mesa, AZ
Phoenix-Mesa, AZ
Amador and Calaveras Cos (Central Mtn), CA
Amador and Calaveras Cos (Central Mtn), CA
Chico, CA
Chico, CA
Imperial County, CA
Imperial Co, CA
Kern County (Eastern Kern), CA
Kern County (Eastern Kern), CA
Los Angeles-San Bernardino (Western Mohave), CA
Los Angeles-San Bernardino (Western Mohave), CA
Los Angeles South Coast Air Basin, CA
Los Angeles South Coast Air Basin, CA
Mariposa and Tuolumne Counties, CA
Mariposa and Tuolumne Counties, CA
Nevada County (Western Nevada), CA
Nevada County (Western Nevada), CA
Riverside Co, (Coachella Valley), CA
Riverside Co, (Coachella Valley), CA
Sacramento Metro, CA
Sacramento Metro, CA
San Diego, CA
San Diego, CA
San Francisco Bay Area, CA
San Francisco Bay Area, CA
San Joaquin Valley, CA
San Joaquin Valley, CA
Sutter County, CA
Sutter County, CA
Ventura, CA
Ventura, CA
Denver-Boulder-Greeley-Ft Collins-Love, CO
Denver-Boulder-Greeley-Ft Collins-Love, CO
Greater Connecticut, CT
Greater Connecticut, CT
Washington, DC-MD-VA
Washington, DC-MD-VA
Atlanta, GA
Atlanta, GA
Macon, GA
Macon, GA
Murray County, GA
Murray County, GA
Chicago-Gary-Lake County, IL-IN
Chicago-Gary-Lake County, IL-IN
Evansville, IN
Evansville, IN
Fort Wayne, IN
Fort Wayne, IN
Greene County, IN
Greene County, IN
Indianapolis, IN
Indianapolis, IN
Jackson County, IN
Jackson County, IN
La Porte, IN
La Porte, IN
Muncie, IN
Muncie, IN
South Bend-Elkhart, IN
South Bend-Elkhart, IN
Terre Haute, IN
Terre Haute, IN
Louisville, KY-IN
Louisville, KY-IN
Baton Rouge, LA
Baton Rouge, LA
Boston-Lawrence-Worcester, MA
Boston-Lawrence-Worcester, MA
Springfield (West Mass), MA
Springfield (West Mass), MA
Baltimore, MD
Baltimore, MD
Kent and Queen Anne's Counties, MD
Kent and Queen Anne's Counties, MD
Washington County, MD (EAC)
Washington County, MD (EAC)
Hancock, Knox, Lincoln, and Waldo Counties, ME
Hancock, Knox, Lincoln, and Waldo Counties, ME
Portland, ME
Portland, ME
Allegan County, MI
Allegan County, MI
Benton Harbor, MI
Benton Harbor, MI
Benzie County, MI
Benzie County, MI
Cass County, MI
Cass County, MI
Detroit-Ann Arbor, MI
Detroit-Ann Arbor, MI
Flint, MI
Flint, MI
Grand Rapids, MI
Grand Rapids, MI
Huron County, MI
Huron County, MI
Kalamazoo-Battle Creek, MI
Kalamazoo-Battle Creek, MI
Lansing-East Lansing, MI
Lansing-East Lansing, MI
Mason County, MI
Mason County, MI
Muskegon, MI
Muskegon, MI
St Louis, MO-IL
St Louis, MO-IL
Fayetteville, NC
Fayetteville, NC
Greensboro-Winston-Salem-High Point, NC
Greensboro-Winston-Salem-High Point, NC
Haywood and Swain Counties, NC
Haywood and Swain Counties, NC
Hickory-Morganton-Lenoir, NC
Hickory-Morganton-Lenoir, NC
Raleigh-Durham-Chapel Hill, NC
Raleigh-Durham-Chapel Hill, NC
Rocky Mount, NC
Rocky Mount, NC
Charlotte-Gastonia-Rock Hill, NC-SC
Charlotte-Gastonia-Rock Hill, NC-SC
Boston-Manchester-Portsmouth, NH
Boston-Manchester-Portsmouth, NH
Las Vegas, NV
Las Vegas, NV
Albany-Schenectady-Troy, NY
Albany-Schenectady-Troy, NY
MAP NOT AVAILABLE
Essex Co (Whiteface Mtn), NY
Buffalo-Niagara Falls, NY
Buffalo-Niagara Falls, NY
Jamestown, NY
Jamestown, NY
Jefferson County, NY
Jefferson County, NY
Poughkeepsie, NY
Poughkeepsie, NY
Rochester, NY
Rochester, NY
New York-North New Jersey-Long Island, NY-NJ-CT
New York-North New Jersey-Long Island, NY-NJ-CT
Canton-Massillon, OH
Canton-Massillon, OH
Cleveland-Akron-Lorain, OH
Cleveland-Akron-Lorain, OH
Columbus, OH
Columbus, OH
Dayton-Springfield, OH
Dayton-Springfield, OH
Lima, OH
Lima, OH
Toledo, OH
Toledo, OH
Cincinnati-Hamilton, OH-KY-IN
Cincinnati-Hamilton, OH-KY-IN
Youngstown-Warren-Sharon, OH-PA
Youngstown-Warren-Sharon, OH-PA
Steubenville-Weirton, OH-WV
Steubenville-Weirton, OH-WV
Allentown-Bethlehem-Easton, PA
Allentown-Bethlehem-Easton, PA
Altoona, PA
Altoona, PA
Clearfield and Indiana Counties, PA
Clearfield and Indiana Counties, PA
Erie, PA
Erie, PA
Franklin County, PA
Franklin County, PA
Greene County, PA
Greene County, PA
Harrisburg-Lebanon-Carlisle, PA
Harrisburg-Lebanon-Carlisle, PA
Johnstown, PA
Johnstown, PA
Lancaster, PA
Lancaster, PA
Pittsburgh-Beaver Valley, PA
Pittsburgh-Beaver Valley, PA
Reading, PA
Reading, PA
Scraton-Wilkes Barre, PA
Scraton-Wilkes Barre, PA
State College, PA
State College, PA
Tioga County, PA
Tioga County, PA
York, PA
York, PA
Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE
Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE
Providence, RI
Providence, RI
Columbia, SC (EAC)
Columbia, SC (EAC)
Greenville-Spartanburg-Anderson, SC (EAC)
Greenville-Spartanburg-Anderson, SC (EAC)
Johnson City-Kingsport-Bristol, TN
Johnson City-Kingsport-Bristol, TN
Knoxville, TN
Knoxville, TN
Nashville, TN
Nashville, TN
Memphis, TN-AR
Memphis, TN-AR
Chattanooga, TN-GA
Chattanooga, TN-GA
Clarksville-Hopkinsville, TN-KY
Clarksville-Hopkinsville, TN-KY
Beaumont-Port Arthur, TX
Beaumont-Port Arthur, TX
Dallas-Fort Worth, TX
Dallas-Fort Worth, TX
Houston-Galveston-Brazoria, TX
Houston-Galveston-Brazoria, TX
San Antonio, TX (EAC)
San Antonio, TX (EAC)
Frederick County, VA (EAC)
Frederick County, VA (EAC)
Fredericksburg, VA
Fredericksburg, VA
Madison and Paige Counties, VA
Madison and Paige Counties, VA
Norfolk-Virginia Beach-Newport News, VA
Norfolk-Virginia Beach-Newport News, VA
Richmond-Petersburg, VA
Richmond-Petersburg, VA
Roanoke, VA (EAC)
Roanoke, VA (EAC)
Door County, WI
Door County, WI
Kewaunee County, WI
Kewaunee County, WI
Manitowoc County, WI
Manitowoc County, WI
Milwaukee-Racine, WI
Milwaukee-Racine, WI
Sheboygan, WI
Sheboygan, WI
Berkeley and Jefferson Counties, WV (EAC)
Berkeley and Jefferson Counties, WV (EAC)
Charleston, WV
Charleston, WV
Huntington-Ashland, WV-KY
Huntington-Ashland, WV-KY
Parkersburg-Marietta, WV-OH
Parkersburg-Marietta, WV-OH
Wheeling, WV-OH
Wheeling, WV-OH
Updated: 07/06/2011
HEP Home Planning Environment Real Estate
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000