Federal Register Notices Related to 8-Hour Ozone (2015) Designations and Classifications

Data is current as of March 31, 2024
Ordered by Area Name

Click on the 'FR' link to view the Federal Register Notice

---

ALLEGAN COUNTY, MI
MICHIGAN
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
AMADOR COUNTY, CA
CALIFORNIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Clean Data Determination/Attainment Determination
10/07/2022	87 FR 60897	Final Approval	Clean Data Determination/Attainment Determination
ATLANTA, GA
GEORGIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Clean Data Determination/Attainment Determination
08/26/2022	87 FR 52487	Proposed Approval	Redesignation to Maintenance
10/07/2022	87 FR 60897	Final Approval	Clean Data Determination/Attainment Determination
10/17/2022	87 FR 62733	Final Approval	Redesignation to Maintenance
BALTIMORE, MD
MARYLAND
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
BERRIEN COUNTY, MI
MICHIGAN
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
05/19/2020	85 FR 29895	Proposed Approval	Redesignation to Maintenance
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
BUTTE COUNTY, CA
CALIFORNIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
07/14/2022	87 FR 42126	Proposed Approval	Clean Data Determination/Attainment Determination
10/20/2022	87 FR 63698	Final Approval	Clean Data Determination/Attainment Determination
CALAVERAS COUNTY, CA
CALIFORNIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
07/14/2022	87 FR 42126	Proposed Approval	Clean Data Determination/Attainment Determination
10/20/2022	87 FR 63698	Final Approval	Clean Data Determination/Attainment Determination
CHICAGO, IL-IN-WI
ILLINOIS
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
06/14/2021	86 FR 31438	Final Approval	Boundary Change
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
INDIANA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
06/14/2021	86 FR 31438	Final Approval	Boundary Change
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
WISCONSIN
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
06/14/2021	86 FR 31438	Final Approval	Boundary Change
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
CINCINNATI, OH-KY
KENTUCKY
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
07/28/2023	88 FR 48772	Proposed Approval	Redesignation to Maintenance
10/04/2023	88 FR 68471	Final Approval	Redesignation to Maintenance
OHIO
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
02/11/2022	87 FR 7978	Proposed Approval	Redesignation to Maintenance
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
06/09/2022	87 FR 35104	Final Approval	Redesignation to Maintenance
01/30/2023	88 FR 5787	Final Approval	Correction/Clarification
CLEVELAND, OH
OHIO
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
COLUMBUS, OH
OHIO
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
07/03/2019	84 FR 31814	Proposed Approval	Redesignation to Maintenance
08/21/2019	84 FR 43508	Final Approval	Redesignation to Maintenance
DALLAS-FORT WORTH, TX
TEXAS
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
01/26/2024	89 FR 5145	Proposed Approval	Change to a Higher Classification (Bump-Ups)
DENVER METRO/NORTH FRONT RANGE, CO
COLORADO
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
06/14/2021	86 FR 31460	Proposed Approval	Boundary Change
11/30/2021	86 FR 67864	Final Approval	Boundary Change
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
DETROIT, MI
MICHIGAN
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
03/14/2022	87 FR 14210	Proposed Approval	Redesignation to Maintenance
04/04/2022	87 FR 19414	Proposed Approval	Extension of Comment Period
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
02/01/2023	88 FR 6633	Final Approval	Change to a Higher Classification (Bump-Ups)
02/01/2023	88 FR 6633	Final Approval	Failure to Attain by Attainment Date
02/03/2023	88 FR 7382	Proposed Approval	Clean Data Determination/Attainment Determination
05/19/2023	88 FR 32584	Final Approval	Clean Data Determination/Attainment Determination
05/19/2023	88 FR 32594	Final Approval	Redesignation to Maintenance
DOOR COUNTY, WI
WISCONSIN
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
03/13/2020	85 FR 14608	Proposed Approval	Redesignation to Maintenance
06/10/2020	85 FR 35377	Final Approval	Redesignation to Maintenance
DOOR COUNTY-REVISED, WI
WISCONSIN
06/14/2021	86 FR 31438	Final Approval	Designation to Nonattainment
03/03/2022	87 FR 12020	Proposed Approval	Redesignation to Maintenance
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
04/29/2022	87 FR 25410	Final Approval	Redesignation to Maintenance
EL PASO-LAS CRUCES, TX-NM
NEW MEXICO
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
06/14/2021	86 FR 31460	Proposed Approval	Boundary Change
11/30/2021	86 FR 67864	Final Approval	Boundary Change
03/07/2023	88 FR 14095	Proposed Approval	179B Determination
04/04/2023	88 FR 19901	Proposed Approval	Extension of Comment Period
TEXAS
06/14/2021	86 FR 31460	Proposed Approval	Boundary Change
11/30/2021	86 FR 67864	Final Approval	Boundary Change
03/07/2023	88 FR 14095	Proposed Approval	179B Determination
04/04/2023	88 FR 19901	Proposed Approval	Extension of Comment Period
GREATER CONNECTICUT, CT
CONNECTICUT
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
HOUSTON-GALVESTON-BRAZORIA, TX
TEXAS
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
01/26/2024	89 FR 5145	Proposed Approval	Change to a Higher Classification (Bump-Ups)
IMPERIAL COUNTY, CA
CALIFORNIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
08/15/2022	87 FR 50030	Proposed Approval	179B Determination
10/20/2022	87 FR 63701	Final Approval	179B Determination
KERN COUNTY (EASTERN KERN), CA
CALIFORNIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
08/13/2021	86 FR 44677	Proposed Approval	Change to a Higher Classification (Bump-Ups)
10/28/2021	86 FR 59648	Final Approval	Change to a Higher Classification (Bump-Ups)
LAS VEGAS, NV
NEVADA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
07/22/2022	87 FR 43764	Proposed Approval	Change to a Higher Classification (Bump-Ups)
07/22/2022	87 FR 43764	Proposed Approval	Failure to Attain by Attainment Date
01/05/2023	88 FR 775	Final Approval	Change to a Higher Classification (Bump-Ups)
01/05/2023	88 FR 775	Final Approval	Failure to Attain by Attainment Date
LOS ANGELES-SAN BERNARDINO COUNTIES (WEST MOJAVE DESERT), CA
CALIFORNIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
LOS ANGELES-SOUTH COAST AIR BASIN, CA
CALIFORNIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
LOUISVILLE, KY-IN
INDIANA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
05/18/2022	87 FR 30129	Proposed Approval	Redesignation to Maintenance
07/05/2022	87 FR 39750	Final Approval	Redesignation to Maintenance
KENTUCKY
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
04/18/2023	88 FR 23598	Proposed Approval	Redesignation to Maintenance
MANITOWOC COUNTY, WI
CALIFORNIA
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
WISCONSIN
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
06/14/2021	86 FR 31438	Final Approval	Boundary Change
02/01/2022	87 FR 5438	Proposed Approval	Redesignation to Maintenance
03/31/2022	87 FR 18702	Final Approval	Redesignation to Maintenance
04/13/2022	87 FR 21842	Proposed Approval	Clean Data Determination/Attainment Determination
MARIPOSA COUNTY, CA
CALIFORNIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
MILWAUKEE, WI
WISCONSIN
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
06/14/2021	86 FR 31438	Final Approval	Boundary Change
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
MORONGO BAND OF MISSION INDIANS, CA
CALIFORNIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
MUSKEGON COUNTY, MI
MICHIGAN
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
NEVADA COUNTY (WESTERN PART), CA
CALIFORNIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
08/13/2021	86 FR 44677	Proposed Approval	Change to a Higher Classification (Bump-Ups)
10/28/2021	86 FR 59648	Final Approval	Change to a Higher Classification (Bump-Ups)
NEW YORK-NORTHERN NEW JERSEY-LONG ISLAND, NY-NJ-CT
CONNECTICUT
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
NEW JERSEY
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
NEW YORK
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
NORTHERN WASATCH FRONT, UT
UTAH
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
PECHANGA BAND OF LUISENO MISSION INDIANS OF THE PECHANGA RESERVATION, CA
CALIFORNIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
PHILADELPHIA-WILMINGTON-ATLANTIC CITY, PA-NJ-MD-DE
DELAWARE
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
MARYLAND
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
NEW JERSEY
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
PENNSYLVANIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
PHOENIX-MESA, AZ
ARIZONA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
RIVERSIDE COUNTY (COACHELLA VALLEY), CA
CALIFORNIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
SACRAMENTO METRO, CA
CALIFORNIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
08/13/2021	86 FR 44677	Proposed Approval	Change to a Higher Classification (Bump-Ups)
10/28/2021	86 FR 59648	Final Approval	Change to a Higher Classification (Bump-Ups)
SAN ANTONIO, TX
TEXAS
07/25/2018	83 FR 35136	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
01/26/2024	89 FR 5145	Proposed Approval	Change to a Higher Classification (Bump-Ups)
SAN DIEGO COUNTY, CA
CALIFORNIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/08/2021	86 FR 18227	Proposed Approval	Change to a Higher Classification (Bump-Ups)
06/02/2021	86 FR 29522	Final Approval	Change to a Higher Classification (Bump-Ups)
SAN FRANCISCO BAY AREA, CA
CALIFORNIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Clean Data Determination/Attainment Determination
10/07/2022	87 FR 60897	Final Approval	Clean Data Determination/Attainment Determination
SAN JOAQUIN VALLEY, CA
CALIFORNIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
SAN LUIS OBISPO (EASTERN PART), CA
CALIFORNIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
07/14/2022	87 FR 42126	Proposed Approval	Clean Data Determination/Attainment Determination
10/20/2022	87 FR 63698	Final Approval	Clean Data Determination/Attainment Determination
SHEBOYGAN COUNTY, WI
WISCONSIN
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
06/14/2021	86 FR 31438	Final Approval	Boundary Change
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
SOUTHERN WASATCH FRONT, UT
UTAH
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Clean Data Determination/Attainment Determination
10/07/2022	87 FR 60897	Final Approval	Clean Data Determination/Attainment Determination
ST. LOUIS, MO-IL
ILLINOIS
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
06/14/2021	86 FR 31438	Final Approval	Boundary Change
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
MISSOURI
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
06/14/2021	86 FR 31438	Final Approval	Boundary Change
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
SUTTER BUTTES, CA
CALIFORNIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
07/14/2022	87 FR 42126	Proposed Approval	Clean Data Determination/Attainment Determination
10/20/2022	87 FR 63698	Final Approval	Clean Data Determination/Attainment Determination
TUOLUMNE COUNTY, CA
CALIFORNIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
07/14/2022	87 FR 42126	Proposed Approval	Clean Data Determination/Attainment Determination
10/20/2022	87 FR 63698	Final Approval	Clean Data Determination/Attainment Determination
TUSCAN BUTTES, CA
CALIFORNIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
07/14/2022	87 FR 42126	Proposed Approval	Clean Data Determination/Attainment Determination
10/20/2022	87 FR 63698	Final Approval	Clean Data Determination/Attainment Determination
UINTA BASIN, UT
UTAH
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Attainment Date Extension
10/07/2022	87 FR 60897	Final Approval	Attainment Date Extension
VENTURA COUNTY, CA
CALIFORNIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
WASHINGTON, DC-MD-VA
DISTRICT OF COLUMBIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
02/01/2023	88 FR 6688	Proposed Approval	Clean Data Determination/Attainment Determination
MARYLAND
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
02/01/2023	88 FR 6688	Proposed Approval	Clean Data Determination/Attainment Determination
VIRGINIA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Change to a Higher Classification (Bump-Ups)
04/13/2022	87 FR 21842	Proposed Approval	Failure to Attain by Attainment Date
10/07/2022	87 FR 60897	Final Approval	Change to a Higher Classification (Bump-Ups)
10/07/2022	87 FR 60897	Final Approval	Failure to Attain by Attainment Date
02/01/2023	88 FR 6688	Proposed Approval	Clean Data Determination/Attainment Determination
YUMA, AZ
ARIZONA
06/04/2018	83 FR 25776	Final Approval	Designation to Nonattainment
04/13/2022	87 FR 21842	Proposed Approval	Clean Data Determination/Attainment Determination
10/07/2022	87 FR 60897	Final Approval	Clean Data Determination/Attainment Determination