1. Regulations
  2. title 40
  3. chapter I-i19
  4. part 81
  5. subpart C
  6. § 81.336

View all text of Subpart C [§ 81.300 - § 81.356]

§ 81.336 - Ohio.

Ohio—1971 Sulfur Dioxide NAAQS

[Primary and Secondary]

Designated area Does not meet primary
standards 		Does not meet secondary standards Cannot be classified Better than
national
standards 		Athens CountyX Clermont CountyX Columbiana CountyX Coshocton CountyX Cuyahoga CountyX The remainder of Cuyahoga CountyX Gallia CountyX Greene CountyX Hamilton CountyX Jefferson County: The Cities of Steubenville and Mingo Junction, Townships of Steubenville, Island Creek, Cross Creek, Knox and WellsX The remainder of Jefferson CountyX Lake County: The Cities of Eastlake, Timberlake, Lakeline, Willoughby (north of U.S. 20) and Mentor (north of U.S. 20, west of S.R. 306)X The remainder of Lake CountyX Lorain CountyX Lucas County: The area east of Route 23 and west of the eastern boundary of Oregon TownshipX The remainder of Lucas County: Mahoning CountyX Montgomery CountyX Morgan County: Center TownshipX The remainder of Morgan CountyX Summit CountyX Trumbull CountyX Washington County: Waterford TownshipX The remainder of Washington CountyX All other counties in the State of OhioX

Ohio—2010 Sulfur Dioxide NAAQS

[Primary]

Designated area 1Designation Date 2Type Campbell-Clermont Counties, KY-OH11/21/16Attainment. Clermont County (part) Pierce Township Lake County, OH5/14/2019Attainment. Lake County Muskingum River, OH10/4/13Nonattainment. Morgan County (part) Center Township Washington County (part) Waterford Township Steubenville, OH-WVNovember 29, 2019Attainment. Jefferson County (part). Cross Creek Township, Steubenville Township, Warren Township, Wells Township, Steubenville City. Gallia County, OH9/12/16Unclassifiable. Gallia County Meigs County (part) Bedford, Columbia, Rutland, Salem, Salisbury, and Scipio Townships Clermont County, Ohio 29/12/16Attainment/Unclassifiable. Clermont County (part) Clermont County excluding Pierce Township Adams CountyAttainment/Unclassifiable. Allen CountyAttainment/Unclassifiable. Ashland CountyAttainment/Unclassifiable. Ashtabula CountyAttainment/Unclassifiable. Athens CountyAttainment/Unclassifiable. Auglaize CountyAttainment/Unclassifiable. Belmont CountyAttainment/Unclassifiable. Brown CountyAttainment/Unclassifiable. Butler CountyAttainment/Unclassifiable Carroll CountyAttainment/Unclassifiable. Champaign CountyAttainment/Unclassifiable. Clark CountyAttainment/Unclassifiable. Clinton CountyAttainment/Unclassifiable. Columbiana CountyAttainment/Unclassifiable. Coshocton CountyAttainment/Unclassifiable. Crawford CountyAttainment/Unclassifiable. Cuyahoga CountyAttainment/Unclassifiable. Darke CountyAttainment/Unclassifiable. Defiance CountyAttainment/Unclassifiable. Delaware CountyAttainment/Unclassifiable. Erie CountyAttainment/Unclassifiable. Fairfield CountyAttainment/Unclassifiable. Fayette CountyAttainment/Unclassifiable. Franklin CountyAttainment/Unclassifiable. Fulton CountyAttainment/Unclassifiable. Geauga CountyAttainment/Unclassifiable. Greene CountyAttainment/Unclassifiable. Guernsey CountyAttainment/Unclassifiable. Hamilton CountyAttainment/Unclassifiable. Hancock CountyAttainment/Unclassifiable. Hardin CountyAttainment/Unclassifiable. Harrison CountyAttainment/Unclassifiable. Henry CountyAttainment/Unclassifiable. Highland CountyAttainment/Unclassifiable. Hocking CountyAttainment/Unclassifiable. Holmes CountyAttainment/Unclassifiable. Huron CountyAttainment/Unclassifiable. Jackson CountyAttainment/Unclassifiable. Jefferson County (part) (remainder)Attainment/Unclassifiable. Knox CountyAttainment/Unclassifiable. Lawrence CountyAttainment/Unclassifiable. Licking CountyAttainment/Unclassifiable. Logan CountyAttainment/Unclassifiable. Lorain CountyAttainment/Unclassifiable. Lucas CountyAttainment/Unclassifiable. Madison CountyAttainment/Unclassifiable. Mahoning CountyAttainment/Unclassifiable. Marion CountyAttainment/Unclassifiable. Medina CountyAttainment/Unclassifiable. Meigs County (part) (remainder)Attainment/Unclassifiable. Mercer CountyAttainment/Unclassifiable. Miami CountyAttainment/Unclassifiable. Monroe CountyAttainment/Unclassifiable. Montgomery CountyAttainment/Unclassifiable. Morgan County (part) (remainder)Attainment/Unclassifiable. Morrow CountyAttainment/Unclassifiable. Muskingum CountyAttainment/Unclassifiable. Noble CountyAttainment/Unclassifiable. Ottawa CountyAttainment/Unclassifiable. Paulding CountyAttainment/Unclassifiable. Perry CountyAttainment/Unclassifiable. Pickaway CountyAttainment/Unclassifiable. Pike CountyAttainment/Unclassifiable. Portage CountyAttainment/Unclassifiable. Preble CountyAttainment/Unclassifiable. Putnam CountyAttainment/Unclassifiable. Richland CountyAttainment/Unclassifiable. Ross CountyAttainment/Unclassifiable. Sandusky CountyAttainment/Unclassifiable. Scioto CountyAttainment/Unclassifiable. Seneca CountyAttainment/Unclassifiable. Shelby CountyAttainment/Unclassifiable. Stark CountyAttainment/Unclassifiable. Summit CountyAttainment/Unclassifiable. Trumbull CountyAttainment/Unclassifiable. Tuscarawas CountyAttainment/Unclassifiable. Union CountyAttainment/Unclassifiable. Van Wert CountyAttainment/Unclassifiable. Vinton CountyAttainment/Unclassifiable. Warren CountyAttainment/Unclassifiable. Washington County (part) (remainder)Attainment/Unclassifiable. Wayne CountyAttainment/Unclassifiable. Williams CountyAttainment/Unclassifiable. Wood CountyAttainment/Unclassifiable. Wyandot CountyAttainment/Unclassifiable.

1 Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country.

2 This date is April 9, 2018, unless otherwise noted.

Ohio—Carbon Monoxide

Designated Area Designation Classification Date 1Type Date 1Type Cleveland Area Cuyahoga County3/7/94Attainment Cincinnati Hamilton CountyUnclassifiable/Attainment Columbus Franklin CountyUnclassifiable/Attainment Adams CountyUnclassifiable/Attainment Allen CountyUnclassifiable/Attainment Ashland CountyUnclassifiable/Attainment Ashtabula CountyUnclassifiable/Attainment Athens CountyUnclassifiable/Attainment Auglaize CountyUnclassifiable/Attainment Belmont CountyUnclassifiable/Attainment Brown CountyUnclassifiable/Attainment Butler CountyUnclassifiable/Attainment Carroll CountyUnclassifiable/Attainment Champaign CountyUnclassifiable/Attainment Clark CountyUnclassifiable/Attainment Clermont CountyUnclassifiable/Attainment Clinton CountyUnclassifiable/Attainment Columbiana CountyUnclassifiable/Attainment Coshocton CountyUnclassifiable/Attainment Crawford CountyUnclassifiable/Attainment Darke CountyUnclassifiable/Attainment Defiance CountyUnclassifiable/Attainment Delaware CountyUnclassifiable/Attainment Erie CountyUnclassifiable/Attainment Fairfield CountyUnclassifiable/Attainment Fayette CountyUnclassifiable/Attainment Fulton CountyUnclassifiable/Attainment Gallia CountyUnclassifiable/Attainment Geauga CountyUnclassifiable/Attainment Greene CountyUnclassifiable/Attainment Guernsey CountyUnclassifiable/Attainment Hancock CountyUnclassifiable/Attainment Hardin CountyUnclassifiable/Attainment Harrison CountyUnclassifiable/Attainment Henry CountyUnclassifiable/Attainment Highland CountyUnclassifiable/Attainment Hocking CountyUnclassifiable/Attainment Holmes CountyUnclassifiable/Attainment Huron CountyUnclassifiable/Attainment Jackson CountyUnclassifiable/Attainment Jefferson County 2Unclassifiable/Attainment Knox CountyUnclassifiable/Attainment Lake CountyUnclassifiable/Attainment Lawrence CountyUnclassifiable/Attainment Licking CountyUnclassifiable/Attainment Logan CountyUnclassifiable/Attainment Lorain CountyUnclassifiable/Attainment Lucas CountyUnclassifiable/Attainment Madison CountyUnclassifiable/Attainment Mahoning CountyUnclassifiable/Attainment Marion CountyUnclassifiable/Attainment Medina CountyUnclassifiable/Attainment Meigs CountyUnclassifiable/Attainment Mercer CountyUnclassifiable/Attainment Miami CountyUnclassifiable/Attainment Monroe CountyUnclassifiable/Attainment Montgomery CountyUnclassifiable/Attainment Morgan CountyUnclassifiable/Attainment Morrow CountyUnclassifiable/Attainment Muskingum CountyUnclassifiable/Attainment Noble CountyUnclassifiable/Attainment Ottawa CountyUnclassifiable/Attainment Paulding CountyUnclassifiable/Attainment Perry CountyUnclassifiable/Attainment Pickaway CountyUnclassifiable/Attainment Pike CountyUnclassifiable/Attainment Portage CountyUnclassifiable/Attainment Preble CountyUnclassifiable/Attainment Putnam CountyUnclassifiable/Attainment Richland CountyUnclassifiable/Attainment Ross CountyUnclassifiable/Attainment Sandusky CountyUnclassifiable/Attainment Scioto CountyUnclassifiable/Attainment Seneca CountyUnclassifiable/Attainment Shelby CountyUnclassifiable/Attainment Stark CountyUnclassifiable/Attainment Summit CountyUnclassifiable/Attainment Trumbull CountyUnclassifiable/Attainment Tuscarawas CountyUnclassifiable/Attainment Union CountyUnclassifiable/Attainment Van Wert CountyUnclassifiable/Attainment Vinton CountyUnclassifiable/Attainment Warren CountyUnclassifiable/Attainment Washington CountyUnclassifiable/Attainment Wayne CountyUnclassifiable/Attainment Williams CountyUnclassifiable/Attainment Wood CountyUnclassifiable/Attainment Wyandot County

1 This date is November 15, 1990, unless otherwise noted.

2 The listed designation does not reflect EPA action under section 107(d)(4)(A). At the date of enactment of the Clean Air Act Amendments, Jefferson County, Ohio; Brooke County, West Virginia; and Hancock County, West Virginia, were designated Unclassifiable/attainment, by operation of law, under section 107(d)(1)(C) of the Clean Air Act. However, these States and EPA are reviewing whether to confirm or reverse that designation under the process set out under section 107(d)(4)(A) and will publish a separate notice to that effect.

Ohio—Ozone (1-Hour Standard) 3

Designated area Designation Classification Date 1Type Date 1Type Canton Area: Stark CountyAttainment Cincinnati-Hamilton Area:6/14/05Attainment Butler County Clermont County Hamilton County Warren County Cleveland-Akron-Lorain Area:Attainment Ashtabula County Cuyahoga County Geauga County Lake County Lorain County Medina County Portage County Summit County Clinton County Area: Clinton CountyAttainment Columbiana County Area: Columbiana CountyAttainment Columbus Area: Delaware CountyAttainment Franklin CountyAttainment Licking CountyAttainment Dayton-Springfield Area: Clark CountyAttainment Greene CountyAttainment Miami CountyAttainment Montgomery CountyAttainment Preble County Area: Preble CountyAttainment Steubenville Area: Jefferson CountyAttainment Toledo Area: Lucas CountyAttainment Wood CountyAttainment Youngstown-Warren-Sharon Area: Mahoning CountyAttainment Trumbull CountyAttainment Adams CountyUnclassifiable/Attainment Allen CountyUnclassifiable/Attainment Ashland CountyUnclassifiable/Attainment Athens CountyUnclassifiable/Attainment Auglaize CountyUnclassifiable/Attainment Belmont CountyUnclassifiable/Attainment Brown CountyUnclassifiable/Attainment Carroll CountyUnclassifiable/Attainment Champaign CountyUnclassifiable/Attainment Coshocton CountyUnclassifiable/Attainment Crawford CountyUnclassifiable/Attainment Darke CountyUnclassifiable/Attainment Defiance CountyUnclassifiable/Attainment Erie CountyUnclassifiable/Attainment Fairfield CountyUnclassifiable/Attainment Fayette CountyUnclassifiable/Attainment Fulton CountyUnclassifiable/Attainment Gallia CountyUnclassifiable/Attainment Guernsey CountyUnclassifiable/Attainment Hancock CountyUnclassifiable/Attainment Hardin CountyUnclassifiable/Attainment Harrison CountyUnclassifiable/Attainment Henry CountyUnclassifiable/Attainment Highland CountyUnclassifiable/Attainment Hocking CountyUnclassifiable/Attainment Holmes CountyUnclassifiable/Attainment Huron CountyUnclassifiable/Attainment Jackson CountyUnclassifiable/Attainment Knox CountyUnclassifiable/Attainment Lawrence CountyUnclassifiable/Attainment Logan CountyUnclassifiable/Attainment Madison CountyUnclassifiable/Attainment Marion CountyUnclassifiable/Attainment Meigs CountyUnclassifiable/Attainment Mercer CountyUnclassifiable/Attainment Monroe CountyUnclassifiable/Attainment Morgan CountyUnclassifiable/Attainment Morrow CountyUnclassifiable/Attainment Muskingum CountyUnclassifiable/Attainment Noble CountyUnclassifiable/Attainment Ottawa CountyUnclassifiable/Attainment Paulding CountyUnclassifiable/Attainment Perry CountyUnclassifiable/Attainment Pickaway CountyUnclassifiable/Attainment Pike CountyUnclassifiable/Attainment Putnam CountyUnclassifiable/Attainment Richland CountyUnclassifiable/Attainment Ross CountyUnclassifiable/Attainment Sandusky CountyUnclassifiable/Attainment Scioto CountyUnclassifiable/Attainment Seneca CountyUnclassifiable/Attainment Shelby CountyUnclassifiable/Attainment Tuscarawas CountyUnclassifiable/Attainment Union CountyUnclassifiable/Attainment Van Wert CountyUnclassifiable/Attainment Vinton CountyUnclassifiable/Attainment Washington CountyUnclassifiable/Attainment Wayne CountyUnclassifiable/Attainment Williams CountyUnclassifiable/Attainment Wyandot CountyUnclassifiable/Attainment

1 This date is November 15, 1990, unless otherwise noted.

3 The 1-hour standard is revoked effective June 15, 2005 for all areas in Ohio. The Canton, Cleveland-Akron-Lorain, Clinton Co, Columbus, Dayton-Springfield, Preble Co, Steubenville, Toledo, Youngstown-Warren-Sharon, and Columbiana Co. areas are maintenance areas for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.

Ohio—PM-10

Designated Area Designation Classification Date Type Date Type Cuyahoga County1/10/01Attainment Jefferson County The area bounded by Market Street (State Route 43) from the West Virginia/Ohio border west to Sunset Blvd. (U.S. Route 22), Sunset Blvd. west to the Steubenville Township/Cross Creek Township boundary, the Township boundary south to the Steubenville Corporation limit, the corporation boundary east to State Route 7, State Route 7 South to the Steubenville Township/Wells Township boundary, the Township boundary Unclassifiable east to the West Virginia/Ohio border, and North on the border to Market Street1/10/01Attainment Rest of State11/15/90Unclassifiable

Ohio—1997 Annual PM2.5 NAAQS

[Primary and Secondary]

Designated area Designation aClassification Date 1Type Date Type Canton-Massillon, OH: Stark County10/22/13Attainment Cincinnati-Hamilton, Ohio:4/7/17Attainment. Butler County Clermont County Hamilton County Warren County Cleveland-Akron-Lorain, OH9/18/13Attainment Ashtabula County (part) Ashtabula Township Cuyahoga County Lake County Lorain County Medina County Portage County Summit County Columbus, OH11/7/13Attainment Coshocton County (part) Franklin Township Delaware County Fairfield County Franklin County Licking County Dayton-Springfield, OH9/26/13Attainment Clark County Greene County Montgomery County Huntington-Ashland, OH12/31/12Attainment Adams County (part) Monroe Township Sprigg Township Gallia County (part) Addison Township Cheshire Township Lawrence County Scioto County Parkersburg-Marietta, WV-OH: Washington County8/29/13Attainment Steubenville-Weirton, OH-WV: Jefferson County9/18/13Attainment Toledo, OH: Lucas CountyUnclassifiable/Attainment Wood CountyUnclassifiable/Attainment Wheeling, WV-OH: Belmont County8/29/13Attainment Youngstown-Warren-Sharon, OH-PA: Columbiana CountyUnclassifiable/Attainment Mahoning CountyUnclassifiable/Attainment Trumbull CountyUnclassifiable/Attainment Rest of State: Adams County (remainder)Unclassifiable/Attainment Allen CountyUnclassifiable/Attainment Ashland CountyUnclassifiable/Attainment Ashtabula County (remainder)Unclassifiable/Attainment Athens CountyUnclassifiable/Attainment Auglaize CountyUnclassifiable/Attainment Brown CountyUnclassifiable/Attainment Carroll CountyUnclassifiable/Attainment Champaign CountyUnclassifiable/Attainment Clinton CountyUnclassifiable/Attainment Coshocton County (remainder)Unclassifiable/Attainment Crawford CountyUnclassifiable/Attainment Darke CountyUnclassifiable/Attainment Defiance CountyUnclassifiable/Attainment Erie CountyUnclassifiable/Attainment Fayette CountyUnclassifiable/Attainment Fulton CountyUnclassifiable/Attainment Gallia County (remainder)Unclassifiable/Attainment Geauga CountyUnclassifiable/Attainment Guernsey CountyUnclassifiable/Attainment Hancock CountyUnclassifiable/Attainment Hardin CountyUnclassifiable/Attainment Harrison CountyUnclassifiable/Attainment Henry CountyUnclassifiable/Attainment Highland CountyUnclassifiable/Attainment Hocking CountyUnclassifiable/Attainment Holmes CountyUnclassifiable/Attainment Huron CountyUnclassifiable/Attainment Jackson CountyUnclassifiable/Attainment Knox CountyUnclassifiable/Attainment Logan CountyUnclassifiable/Attainment Madison CountyUnclassifiable/Attainment Marion CountyUnclassifiable/Attainment Meigs CountyUnclassifiable/Attainment Mercer CountyUnclassifiable/Attainment Miami CountyUnclassifiable/Attainment Monroe CountyUnclassifiable/Attainment Morgan CountyUnclassifiable/Attainment Morrow CountyUnclassifiable/Attainment Muskingum CountyUnclassifiable/Attainment Noble CountyUnclassifiable/Attainment Ottawa CountyUnclassifiable/Attainment Paulding CountyUnclassifiable/Attainment Perry CountyUnclassifiable/Attainment Pickaway CountyUnclassifiable/Attainment Pike CountyUnclassifiable/Attainment Preble CountyUnclassifiable/Attainment Putnam CountyUnclassifiable/Attainment Richland CountyUnclassifiable/Attainment Ross CountyUnclassifiable/Attainment Sandusky CountyUnclassifiable/Attainment Seneca CountyUnclassifiable/Attainment Shelby CountyUnclassifiable/Attainment Tuscarawas CountyUnclassifiable/Attainment Union CountyUnclassifiable/Attainment Van Wert CountyUnclassifiable/Attainment Vinton CountyUnclassifiable/Attainment Wayne CountyUnclassifiable/Attainment Williams CountyUnclassifiable/Attainment Wyandot CountyUnclassifiable/Attainment

a Includes Indian Country located in each county or area, except as otherwise specified.

1 This date is 90 days after January 5, 2005, unless otherwise noted.

Ohio—2012 Annual PM 2.5 NAAQS

[Primary]

Designated area 1Designation Classification Date 2Type Date 2Type Cleveland, OH: Cuyahoga County4/12/2019AttainmentModerate Lorain County4/12/2019AttainmentModerate Rest of State: Adams CountyUnclassifiable/Attainment Allen CountyUnclassifiable/Attainment Ashland CountyUnclassifiable/Attainment Ashtabula CountyUnclassifiable/Attainment Athens CountyUnclassifiable/Attainment Auglaize CountyUnclassifiable/Attainment Belmont CountyUnclassifiable/Attainment Brown CountyUnclassifiable/Attainment Butler CountyUnclassifiable/Attainment Carroll CountyUnclassifiable/Attainment Champaign CountyUnclassifiable/Attainment Clark CountyUnclassifiable/Attainment Clermont CountyUnclassifiable/Attainment Clinton CountyUnclassifiable/Attainment Columbiana CountyUnclassifiable/Attainment Coshocton CountyUnclassifiable/Attainment Crawford CountyUnclassifiable/Attainment Darke CountyUnclassifiable/Attainment Defiance CountyUnclassifiable/Attainment Delaware CountyUnclassifiable/Attainment Erie CountyUnclassifiable/Attainment Fairfield CountyUnclassifiable/Attainment Fayette CountyUnclassifiable/Attainment Franklin CountyUnclassifiable/Attainment Fulton CountyUnclassifiable/Attainment Gallia CountyUnclassifiable/Attainment Geauga CountyUnclassifiable/Attainment Greene CountyUnclassifiable/Attainment Guernsey CountyUnclassifiable/Attainment Hamilton CountyUnclassifiable/Attainment Hancock CountyUnclassifiable/Attainment Hardin CountyUnclassifiable/Attainment Harrison CountyUnclassifiable/Attainment Henry CountyUnclassifiable/Attainment Highland CountyUnclassifiable/Attainment Hocking CountyUnclassifiable/Attainment Holmes CountyUnclassifiable/Attainment Huron CountyUnclassifiable/Attainment Jackson CountyUnclassifiable/Attainment Jefferson CountyUnclassifiable/Attainment Knox CountyUnclassifiable/Attainment Lake CountyUnclassifiable/Attainment Lawrence CountyUnclassifiable/Attainment Licking CountyUnclassifiable/Attainment Logan CountyUnclassifiable/Attainment Lucas CountyUnclassifiable/Attainment Madison CountyUnclassifiable/Attainment Mahoning CountyUnclassifiable/Attainment Marion CountyUnclassifiable/Attainment Medina CountyUnclassifiable/Attainment Meigs CountyUnclassifiable/Attainment Mercer CountyUnclassifiable/Attainment Miami CountyUnclassifiable/Attainment Monroe CountyUnclassifiable/Attainment Montgomery CountyUnclassifiable/Attainment Morgan CountyUnclassifiable/Attainment Morrow CountyUnclassifiable/Attainment Muskingum CountyUnclassifiable/Attainment Noble CountyUnclassifiable/Attainment Ottawa CountyUnclassifiable/Attainment Paulding CountyUnclassifiable/Attainment Perry CountyUnclassifiable/Attainment Pickaway CountyUnclassifiable/Attainment Pike CountyUnclassifiable/Attainment Portage CountyUnclassifiable/Attainment Preble CountyUnclassifiable/Attainment Putnam CountyUnclassifiable/Attainment Richland CountyUnclassifiable/Attainment Ross CountyUnclassifiable/Attainment Sandusky CountyUnclassifiable/Attainment Scioto CountyUnclassifiable/Attainment Seneca CountyUnclassifiable/Attainment Shelby CountyUnclassifiable/Attainment Stark CountyUnclassifiable/Attainment Summit CountyUnclassifiable/Attainment Trumbull CountyUnclassifiable/Attainment Tuscarawas CountyUnclassifiable/Attainment Union CountyUnclassifiable/Attainment Van Wert CountyUnclassifiable/Attainment Vinton CountyUnclassifiable/Attainment Warren CountyUnclassifiable/Attainment Washington CountyUnclassifiable/Attainment Wayne CountyUnclassifiable/Attainment Williams CountyUnclassifiable/Attainment Wood CountyUnclassifiable/Attainment Wyandot CountyUnclassifiable/Attainment

1 Includes areas of Indian country located in each county or area, except as otherwise specified.

2 This date is April 15, 2015, unless otherwise noted.

Ohio—1997 24-Hour PM2.5 NAAQS

[Primary and Secondary]

Designated area Designation aClassification Type Date 1Date Type Canton-Massillon, OH: Stark CountyUnclassifiable/Attainment Cleveland-Akron-Lorain, OH:Unclassifiable/Attainment Cuyahoga County Lake County Lorain County Medina County Portage County Summit County Steubenville-Weirton, OH-WV: Jefferson CountyUnclassifiable/Attainment Rest of State: Adams CountyUnclassifiable/Attainment Allen CountyUnclassifiable/Attainment Ashland CountyUnclassifiable/Attainment Ashtabula CountyUnclassifiable/Attainment Athens CountyUnclassifiable/Attainment Auglaize CountyUnclassifiable/Attainment Belmont CountyUnclassifiable/Attainment Brown CountyUnclassifiable/Attainment Butler CountyUnclassifiable/Attainment Carroll CountyUnclassifiable/Attainment Champaign CountyUnclassifiable/Attainment Clark CountyUnclassifiable/Attainment Clermont CountyUnclassifiable/Attainment Clinton CountyUnclassifiable/Attainment Columbiana CountyUnclassifiable/Attainment Coshocton CountyUnclassifiable/Attainment Crawford CountyUnclassifiable/Attainment Darke CountyUnclassifiable/Attainment Defiance CountyUnclassifiable/Attainment Delaware CountyUnclassifiable/Attainment Erie CountyUnclassifiable/Attainment Fairfield CountyUnclassifiable/Attainment Fayette CountyUnclassifiable/Attainment Franklin CountyUnclassifiable/Attainment Fulton CountyUnclassifiable/Attainment Gallia CountyUnclassifiable/Attainment Geauga CountyUnclassifiable/Attainment Greene CountyUnclassifiable/Attainment Guernsey CountyUnclassifiable/Attainment Hamilton CountyUnclassifiable/Attainment Hancock CountyUnclassifiable/Attainment Hardin CountyUnclassifiable/Attainment Harrison CountyUnclassifiable/Attainment Henry CountyUnclassifiable/Attainment Highland CountyUnclassifiable/Attainment Hocking CountyUnclassifiable/Attainment Holmes CountyUnclassifiable/Attainment Huron CountyUnclassifiable/Attainment Jackson CountyUnclassifiable/Attainment Knox CountyUnclassifiable/Attainment Lawrence CountyUnclassifiable/Attainment Licking CountyUnclassifiable/Attainment Logan CountyUnclassifiable/Attainment Lucas CountyUnclassifiable/Attainment Madison CountyUnclassifiable/Attainment Mahoning CountyUnclassifiable/Attainment Marion CountyUnclassifiable/Attainment Meigs CountyUnclassifiable/Attainment Mercer CountyUnclassifiable/Attainment Miami CountyUnclassifiable/Attainment Monroe CountyUnclassifiable/Attainment Montgomery CountyUnclassifiable/Attainment Morgan CountyUnclassifiable/Attainment Morrow CountyUnclassifiable/Attainment Muskingum CountyUnclassifiable/Attainment Noble CountyUnclassifiable/Attainment Ottawa CountyUnclassifiable/Attainment Paulding CountyUnclassifiable/Attainment Perry CountyUnclassifiable/Attainment Pickaway CountyUnclassifiable/Attainment Pike CountyUnclassifiable/Attainment Preble CountyUnclassifiable/Attainment Putnam CountyUnclassifiable/Attainment Richland CountyUnclassifiable/Attainment Ross CountyUnclassifiable/Attainment Sandusky CountyUnclassifiable/Attainment Scioto CountyUnclassifiable/Attainment Seneca CountyUnclassifiable/Attainment Shelby CountyUnclassifiable/Attainment Trumbull CountyUnclassifiable/Attainment Tuscarawas CountyUnclassifiable/Attainment Union CountyUnclassifiable/Attainment Van Wert CountyUnclassifiable/Attainment Vinton CountyUnclassifiable/Attainment Warren CountyUnclassifiable/Attainment Washington CountyUnclassifiable/Attainment Wayne CountyUnclassifiable/Attainment Williams CountyUnclassifiable/Attainment Wood CountyUnclassifiable/Attainment Wyandot CountyUnclassifiable/Attainment

a Includes Indian Country located in each county or area, except as otherwise specified.

1 This date is 90 days after January 5, 2005, unless otherwise noted.

Ohio—2006 24-Hour PM2.5 NAAQS

[Primary and Secondary]

Designated area Designation aClassification Date 1Type Date Type Canton-Massillon, OH: Stark County10/22/13Attainment. Cleveland-Akron-Lorain, OH9/18/13Attainment. Cuyahoga County Lake County Lorain County Medina County Portage County Summit County Steubenville-Weirton, OH-WV: Jefferson County9/18/13Attainment. Rest of State: Adams CountyUnclassifiable/Attainment Allen CountyUnclassifiable/Attainment Ashland CountyUnclassifiable/Attainment Ashtabula CountyUnclassifiable/Attainment Athens CountyUnclassifiable/Attainment Auglaize CountyUnclassifiable/Attainment Belmont CountyUnclassifiable/Attainment Brown CountyUnclassifiable/Attainment Butler CountyUnclassifiable/Attainment Carroll CountyUnclassifiable/Attainment Champaign CountyUnclassifiable/Attainment Clark CountyUnclassifiable/Attainment Clermont CountyUnclassifiable/Attainment Clinton CountyUnclassifiable/Attainment Columbiana CountyUnclassifiable/Attainment Coshocton CountyUnclassifiable/Attainment Crawford CountyUnclassifiable/Attainment Darke CountyUnclassifiable/Attainment Defiance CountyUnclassifiable/Attainment Delaware CountyUnclassifiable/Attainment Erie CountyUnclassifiable/Attainment Fairfield CountyUnclassifiable/Attainment Fayette CountyUnclassifiable/Attainment Franklin CountyUnclassifiable/Attainment Fulton CountyUnclassifiable/Attainment Gallia CountyUnclassifiable/Attainment Geauga CountyUnclassifiable/Attainment Greene CountyUnclassifiable/Attainment Guernsey CountyUnclassifiable/Attainment Hamilton CountyUnclassifiable/Attainment Hancock CountyUnclassifiable/Attainment Hardin CountyUnclassifiable/Attainment Harrison CountyUnclassifiable/Attainment Henry CountyUnclassifiable/Attainment Highland CountyUnclassifiable/Attainment Hocking CountyUnclassifiable/Attainment Holmes CountyUnclassifiable/Attainment Huron CountyUnclassifiable/Attainment Jackson CountyUnclassifiable/Attainment Knox CountyUnclassifiable/Attainment Lawrence CountyUnclassifiable/Attainment Licking CountyUnclassifiable/Attainment Logan CountyUnclassifiable/Attainment Lucas CountyUnclassifiable/Attainment Madison CountyUnclassifiable/Attainment Mahoning CountyUnclassifiable/Attainment Marion CountyUnclassifiable/Attainment Meigs CountyUnclassifiable/Attainment Mercer CountyUnclassifiable/Attainment Miami CountyUnclassifiable/Attainment Monroe CountyUnclassifiable/Attainment Montgomery CountyUnclassifiable/Attainment Morgan CountyUnclassifiable/Attainment Morrow CountyUnclassifiable/Attainment Muskingum CountyUnclassifiable/Attainment Noble CountyUnclassifiable/Attainment Ottawa CountyUnclassifiable/Attainment Paulding CountyUnclassifiable/Attainment Perry CountyUnclassifiable/Attainment Pickaway CountyUnclassifiable/Attainment Pike CountyUnclassifiable/Attainment Preble CountyUnclassifiable/Attainment Putnam CountyUnclassifiable/Attainment Richland CountyUnclassifiable/Attainment Ross CountyUnclassifiable/Attainment Sandusky CountyUnclassifiable/Attainment Scioto CountyUnclassifiable/Attainment Seneca CountyUnclassifiable/Attainment Shelby CountyUnclassifiable/Attainment Trumbull CountyUnclassifiable/Attainment Tuscarawas CountyUnclassifiable/Attainment Union CountyUnclassifiable/Attainment Van Wert CountyUnclassifiable/Attainment Vinton CountyUnclassifiable/Attainment Warren CountyUnclassifiable/Attainment Washington CountyUnclassifiable/Attainment Wayne CountyUnclassifiable/Attainment Williams CountyUnclassifiable/Attainment Wood CountyUnclassifiable/Attainment Wyandot CountyUnclassifiable/Attainment

a Includes Indian Country located in each county or area, except as otherwise specified.

1 This date is 30 days after November 13, 2009, unless otherwise noted.

Ohio—NO2 (1971 Annual Standard)

Designated area Does not meet primary standards Cannot be classified or better than national standards State of OhioX

Ohio—NO2 (2010 1-Hour Standard)

Designated area Designation aDate 1Type Adams CountyUnclassifiable/Attainment. Allen CountyUnclassifiable/Attainment. Ashland CountyUnclassifiable/Attainment. Ashtabula CountyUnclassifiable/Attainment. Athens CountyUnclassifiable/Attainment. Auglaize CountyUnclassifiable/Attainment. Belmont CountyUnclassifiable/Attainment. Brown CountyUnclassifiable/Attainment. Butler CountyUnclassifiable/Attainment. Carroll CountyUnclassifiable/Attainment. Champaign CountyUnclassifiable/Attainment. Clark CountyUnclassifiable/Attainment. Clermont CountyUnclassifiable/Attainment. Clinton CountyUnclassifiable/Attainment. Columbiana CountyUnclassifiable/Attainment. Coshocton CountyUnclassifiable/Attainment. Crawford CountyUnclassifiable/Attainment. Cuyahoga CountyUnclassifiable/Attainment. Darke CountyUnclassifiable/Attainment. Defiance CountyUnclassifiable/Attainment. Delaware CountyUnclassifiable/Attainment. Erie CountyUnclassifiable/Attainment. Fairfield CountyUnclassifiable/Attainment. Fayette CountyUnclassifiable/Attainment. Franklin CountyUnclassifiable/Attainment. Fulton CountyUnclassifiable/Attainment. Gallia CountyUnclassifiable/Attainment. Geauga CountyUnclassifiable/Attainment. Greene CountyUnclassifiable/Attainment. Guernsey CountyUnclassifiable/Attainment. Hamilton CountyUnclassifiable/Attainment. Hancock CountyUnclassifiable/Attainment. Hardin CountyUnclassifiable/Attainment. Harrison CountyUnclassifiable/Attainment. Henry CountyUnclassifiable/Attainment. Highland CountyUnclassifiable/Attainment. Hocking CountyUnclassifiable/Attainment. Holmes CountyUnclassifiable/Attainment. Huron CountyUnclassifiable/Attainment. Jackson CountyUnclassifiable/Attainment. Jefferson CountyUnclassifiable/Attainment. Knox CountyUnclassifiable/Attainment. Lake CountyUnclassifiable/Attainment. Lawrence CountyUnclassifiable/Attainment. Licking CountyUnclassifiable/Attainment. Logan CountyUnclassifiable/Attainment. Lorain CountyUnclassifiable/Attainment. Lucas CountyUnclassifiable/Attainment. Madison CountyUnclassifiable/Attainment. Mahoning CountyUnclassifiable/Attainment. Marion CountyUnclassifiable/Attainment. Medina CountyUnclassifiable/Attainment. Meigs CountyUnclassifiable/Attainment. Mercer CountyUnclassifiable/Attainment. Miami CountyUnclassifiable/Attainment. Monroe CountyUnclassifiable/Attainment. Montgomery CountyUnclassifiable/Attainment. Morgan CountyUnclassifiable/Attainment. Morrow CountyUnclassifiable/Attainment. Muskingum CountyUnclassifiable/Attainment. Noble CountyUnclassifiable/Attainment. Ottawa CountyUnclassifiable/Attainment. Paulding CountyUnclassifiable/Attainment. Perry CountyUnclassifiable/Attainment. Pickaway CountyUnclassifiable/Attainment. Pike CountyUnclassifiable/Attainment. Portage CountyUnclassifiable/Attainment. Preble CountyUnclassifiable/Attainment. Putnam CountyUnclassifiable/Attainment. Richland CountyUnclassifiable/Attainment. Ross CountyUnclassifiable/Attainment. Sandusky CountyUnclassifiable/Attainment. Scioto CountyUnclassifiable/Attainment. Seneca CountyUnclassifiable/Attainment. Shelby CountyUnclassifiable/Attainment. Stark CountyUnclassifiable/Attainment. Summit CountyUnclassifiable/Attainment. Trumbull CountyUnclassifiable/Attainment. Tuscarawas CountyUnclassifiable/Attainment. Union CountyUnclassifiable/Attainment. Van Wert CountyUnclassifiable/Attainment. Vinton CountyUnclassifiable/Attainment. Warren CountyUnclassifiable/Attainment. Washington CountyUnclassifiable/Attainment. Wayne CountyUnclassifiable/Attainment. Williams CountyUnclassifiable/Attainment. Wood CountyUnclassifiable/Attainment. Wyandot CountyUnclassifiable/Attainment.

a Includes Indian Country located in each county or area, except as otherwise specified.

1 This date is 90 days after October 31, 2011, unless otherwise noted.

Ohio—1997 8-Hour Ozone NAAQS

[Primary and Secondary]

Designated area Designation aCategory/classification Date 1Type Date 1Type Canton-Massillon, OH: Stark County6/15/07Attainment. Cincinnati-Hamilton, OH-KY-IN: Butler CountyMay 11, 2010AttainmentClermont CountyClinton CountyHamilton CountyWarren CountyCleveland-Akron-Lorain, OH: Ashtabula County Cuyahoga County9/15/2009Attainment. Geauga County Lake County Lorain County Medina County Portage County Summit County Columbus, OH: Delaware County9/15/09Attainment Fairfield County Franklin County Knox County Licking County Madison County Dayton-Springfield, OH: Clark CountyAugust 13, 2007Attainment. Greene County. Miami County. Montgomery County. Lima, OH: Allen County6/15/07Attainment. Parkersburg-Marietta, WV-OH: Washington County6/15/07Attainment. Steubenville-Weirton, OH-WV: Jefferson County6/15/07Attainment.Toledo Area: Lucas County08/09/07Attainment. Wood County08/09/07Attainment. Wheeling, WV-OH: Belmont County6/15/2007Attainment. Youngstown-Warren-Sharon, PA-OH:June 12, 2007 Columbiana CountyAttainmentMahoning CountyAttainmentTrumbull CountyAttainmentRest of State: Adams CountyUnclassifiable/Attainment Ashland CountyUnclassifiable/Attainment Athens County Auglaize CountyUnclassifiable/Attainment Brown CountyUnclassifiable/Attainment Carroll CountyUnclassifiable/Attainment Champaign CountyUnclassifiable/Attainment Coshocton CountyUnclassifiable/Attainment Crawford CountyUnclassifiable/Attainment Darke CountyUnclassifiable/Attainment Defiance CountyUnclassifiable/Attainment Erie CountyUnclassifiable/Attainment Fayette CountyUnclassifiable/Attainment Fulton CountyUnclassifiable/Attainment Gallia CountyUnclassifiable/Attainment Guernsey CountyUnclassifiable/Attainment Hancock CountyUnclassifiable/Attainment Hardin CountyUnclassifiable/Attainment Harrison CountyUnclassifiable/Attainment Henry CountyUnclassifiable/Attainment Highland CountyUnclassifiable/Attainment Hocking CountyUnclassifiable/Attainment Holmes CountyUnclassifiable/Attainment Huron CountyUnclassifiable/Attainment Jackson CountyUnclassifiable/Attainment Lawrence CountyUnclassifiable/Attainment Logan CountyUnclassifiable/Attainment Marion CountyUnclassifiable/Attainment Meigs CountyUnclassifiable/Attainment Mercer CountyUnclassifiable/Attainment Monroe CountyUnclassifiable/Attainment Morgan CountyUnclassifiable/Attainment Morrow CountyUnclassifiable/Attainment Muskingum CountyUnclassifiable/Attainment Noble CountyUnclassifiable/Attainment Ottawa CountyUnclassifiable/Attainment Paulding CountyUnclassifiable/Attainment Perry CountyUnclassifiable/Attainment Pickaway CountyUnclassifiable/Attainment Pike CountyUnclassifiable/Attainment Preble CountyUnclassifiable/Attainment Putnam CountyUnclassifiable/Attainment Richland CountyUnclassifiable/Attainment Ross CountyUnclassifiable/Attainment Sandusky CountyUnclassifiable/Attainment Scioto CountyUnclassifiable/Attainment Seneca CountyUnclassifiable/Attainment Shelby CountyUnclassifiable/Attainment Tuscarawas CountyUnclassifiable/Attainment Union CountyUnclassifiable/Attainment Van Wert CountyUnclassifiable/Attainment Vinton CountyUnclassifiable/Attainment Wayne CountyUnclassifiable/Attainment Williams CountyUnclassifiable/Attainment Wyandot CountyUnclassifiable/Attainment

a Includes Indian Country located in each county or area, except as otherwise specified.

1 This date is June 15, 2004, unless otherwise noted.

Ohio—2008 8-Hour Ozone NAAQS

[Primary and Secondary]

Designated area Designation Classification Date 1Type Date 1Type Cincinnati, OH-KY-IN: 212/16/16AttainmentButler County Clermont County Clinton County Hamilton County Warren County Cleveland, OH: 2 Ashtabula County, Cuyahoga County, Geauga County, Lake County, Lorain County, Medina County, Portage County, Summit County1/6/17Attainment Columbus, OH: 2 Delaware County, Fairfield County, Franklin County, Knox County, Licking County, Madison County12/21/16Attainment Rest of State: 3Unclassifiable/Attainment

1 This date is July 20, 2012, unless otherwise noted.

2 Excludes Indian country located in each area, unless otherwise noted.

3 Includes any Indian country in each county or area, unless otherwise specified.

4 Attainment date is extended to July 20, 2016.

Ohio—2015 8-Hour Ozone NAAQS

[Primary and Secondary]

Designated area 1Designation Classification Date 2Type Date 2Type Cincinnati, OH-KYJune 9, 2022AttainmentMarginal. Butler County.Clermont County.Hamilton County.Warren County.Cleveland, OHNonattainment11/7/22Moderate. Cuyahoga County. Geauga County. Lake County. Lorain County. Medina County. Portage County. Summit County. Columbus, OH:8/21/19Attainment Delaware County Fairfield County Franklin County Licking County Adams County1/16/18Attainment/Unclassifiable Allen County1/16/18Attainment/Unclassifiable Ashland County1/16/18Attainment/Unclassifiable Ashtabula CountyAttainment/Unclassifiable Athens County1/16/18Attainment/Unclassifiable Auglaize County1/16/18Attainment/Unclassifiable Belmont County1/16/18Attainment/Unclassifiable Brown CountyAttainment/Unclassifiable Carroll CountyAttainment/Unclassifiable Champaign County1/16/18Attainment/Unclassifiable Clark County1/16/18Attainment/Unclassifiable Clinton CountyAttainment/Unclassifiable Columbiana County1/16/18Attainment/Unclassifiable Coshocton County1/16/18Attainment/Unclassifiable Crawford County1/16/18Attainment/Unclassifiable Darke County1/16/18Attainment/Unclassifiable Defiance County1/16/18Attainment/Unclassifiable Erie CountyAttainment/Unclassifiable Fayette CountyAttainment/Unclassifiable Fulton County1/16/18Attainment/Unclassifiable Gallia County1/16/18Attainment/Unclassifiable Greene CountyAttainment/Unclassifiable Guernsey CountyAttainment/Unclassifiable Hancock County1/16/18Attainment/Unclassifiable Hardin County1/16/18Attainment/Unclassifiable Harrison County1/16/18Attainment/Unclassifiable Henry County1/16/18Attainment/Unclassifiable Highland County1/16/18Attainment/Unclassifiable Hocking CountyAttainment/Unclassifiable Holmes County1/16/18Attainment/Unclassifiable Huron CountyAttainment/Unclassifiable Jackson County1/16/18Attainment/Unclassifiable Jefferson County1/16/18Attainment/Unclassifiable Knox CountyAttainment/Unclassifiable Lawrence County1/16/18Attainment/Unclassifiable Logan CountyAttainment/Unclassifiable Lucas County1/16/18Attainment/Unclassifiable Madison CountyAttainment/Unclassifiable Mahoning County1/16/18Attainment/Unclassifiable Marion CountyAttainment/Unclassifiable Meigs County1/16/18Attainment/Unclassifiable Mercer County1/16/18Attainment/Unclassifiable Miami County1/16/18Attainment/Unclassifiable Monroe County1/16/18Attainment/Unclassifiable Montgomery CountyAttainment/Unclassifiable Morgan County1/16/18Attainment/Unclassifiable Morrow CountyAttainment/Unclassifiable Muskingum CountyAttainment/Unclassifiable Noble County1/16/18Attainment/Unclassifiable Ottawa County1/16/18Attainment/Unclassifiable Paulding County1/16/18Attainment/Unclassifiable Perry CountyAttainment/Unclassifiable Pickaway CountyAttainment/Unclassifiable Pike County1/16/18Attainment/Unclassifiable Preble CountyAttainment/Unclassifiable Putnam County1/16/18Attainment/Unclassifiable Richland County1/16/18Attainment/Unclassifiable Ross CountyAttainment/Unclassifiable Sandusky County1/16/18Attainment/Unclassifiable Scioto County1/16/18Attainment/Unclassifiable Seneca County1/16/18Attainment/Unclassifiable Shelby County1/16/18Attainment/Unclassifiable Stark CountyAttainment/Unclassifiable Trumbull CountyAttainment/Unclassifiable Tuscarawas CountyAttainment/Unclassifiable Union CountyAttainment/Unclassifiable Van Wert County1/16/18Attainment/Unclassifiable Vinton County1/16/18Attainment/Unclassifiable Washington County1/16/18Attainment/Unclassifiable Wayne County1/16/18Attainment/Unclassifiable Williams County1/16/18Attainment/Unclassifiable Wood County1/16/18Attainment/Unclassifiable Wyandot County1/16/18Attainment/Unclassifiable

1 Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country.

2 This date is August 3, 2018, unless otherwise noted.

Ohio—1978 Lead NAAQS

Designated area Designation Classification Date Type Date Type Cuyahoga County (part) Subcounty area in the vicinity of Master Metals1/6/92Unclassifiable On the west by Interstate 71, on the north by the Conrail tracks, on the east by Interstate 77, and on the south by a line running from the intersection of Interstate 71 and Clark Avenue to the intersection of Interstate 77 and Pershing Avenue Rest of State Not Designated

Ohio—2008 Lead NAAQS

Designated area Designation for the 2008 NAAQS aDate 1Type Bellefontaine, OH: Logan County (part)7/28/2014Attainment. The portions of Logan County that are bounded by: Sections 27, 28, 33, and 34 of Lake Township Canton—Stark County, OH:April 10, 2023Nonattainment. Stark County (part) Nonattainment area is bounded by the following roadways: North: State Route OH-153 (12th Street NE; Mahoning Road) East: Broadway Avenue. South: State Route OH-172 (Tuscarawas Street E; Lincoln Street E) West: State Route OH-43—Northbound (Cherry Avenue NE) Cleveland, OH: Cuyahoga County (part)5/31/2017Attainment. The portions of Cuyahoga County that are bounded on the west by Washington Park Blvd./Crete Ave./East 49th St., on the east by East 71st St., on the north by Fleet Ave., and on the south by Grant Ave Delta, OH:3/13/2018Attainment. Fulton County (part) The portions of Fulton County that are bounded by: sections 12 and 13 of York Township and sections 7 and 18 of Swan Creek Township Rest of StateUnclassifiable/Attainment.

a Includes Indian Country located in each county or area, except as otherwise specified.

1 December 31, 2011 unless otherwise noted.

[43 FR 46011, Oct. 5, 1978] Editorial Note:For Federal Register citations affecting § 81.336, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.

AUTHORITY: 42 U.S.C. 7401,

SOURCE: 36 FR 22421, Nov. 25, 1971, unless otherwise noted.

CITE AS: 40 CFR 81.336