(a) Based upon EPA's review of the air quality data for the 3-year period 2007-2009, EPA determined that the Huntington-Ashland, West Virginia-Kentucky-Ohio PM2.5 nonattainment Area attained the 1997 annual PM2.5 NAAQS by the applicable attainment date of April 5, 2010. Therefore, EPA has met the requirement pursuant to CAA section 179(c) to determine, based on the Area's air quality as of the attainment date, whether the Area attained the standard. EPA also determined that the Huntington-Ashland PM2.5 nonattainment Area is not subject to the consequences of failing to attain pursuant to section 179(d).

(b) Based upon EPA's review of the air quality data for the 3-year period 2007 to 2009, EPA determined that the Cleveland-Akron, Columbus, Dayton-Springfield, and Steubenville-Weirton fine particle (PM2.5) nonattainment areas attained the 1997 annual PM2.5 National Ambient Air Quality Standard (NAAQS) by the applicable attainment date of April 5, 2010. Therefore, EPA has met the requirement pursuant to CAA section 179(c) to determine, based on the area's air quality as of the attainment date, whether the area attained the standard. EPA also determined that the Cleveland-Akron, Columbus, Dayton-Springfield, and Steubenville-Weirton PM2.5 nonattainment areas are not subject to the consequences of failing to attain pursuant to section 179(d).

(c) Based upon EPA's review of the air quality data for the 3-year period 2007-2009, EPA determined that the Cincinnati-Hamilton, Ohio-Kentucky-Indiana PM2.5 nonattainment Area attained the 1997 annual PM2.5 NAAQS by the applicable attainment date of April 5, 2010. Therefore, EPA has met the requirement pursuant to CAA section 179(c) to determine, based on the Area's air quality as of the attainment date, whether the Area attained the standard. EPA also determined that the Cincinnati-Hamilton, Ohio, Kentucky, and Indiana PM2.5 nonattainment Area is not subject to the consequences of failing to attain pursuant to section 179(d).

(d) Based upon EPA's review of the air quality data for the 3-year period 2007 to 2009, EPA determined that the Parkersburg-Marietta, WV-OH and Wheeling, WV-OH fine particle (PM2.5) nonattainment areas attained the 1997 annual PM2.5 National Ambient Air Quality Standard (NAAQS) by the applicable attainment date of April 5, 2010. Therefore, EPA has met the requirement pursuant to CAA section 179(c) to determine, based on the areas' air quality as of the attainment date, whether the areas attained the standard. EPA also determined that the Parkersburg-Marietta, WV-OH and Wheeling, WV-OH PM2.5 nonattainment areas are not subject to the consequences of failing to attain pursuant to section 179(d).

(e) Based upon EPA's review of the air quality data for the 3-year period 2010 to 2012, EPA determined that the Bellefontaine, OH lead nonattainment areas attained the 2008 Lead National Ambient Air Quality Standard (NAAQS). This clean data determination suspends the requirements for this area to submit an attainment demonstration, associated reasonably available control measures, a reasonable further progress plan, contingency measures, and other planning SIPs related to attainment of the standard for as long as this area continues to meet the 2008 lead NAAQS.

(f) Based upon EPA's review of the air quality data for the three-year period 2012 to 2014, EPA determined that the Cleveland and Delta, OH lead nonattainment areas have attained the 2008 Lead National Ambient Air Quality Standard (NAAQS). This clean data determination suspends the requirements for these areas to submit an attainment demonstration, associated reasonably available control measures, a reasonable further progress plan, contingency measures, and other planning SIPs related to attainment of the standard for as long as this area continues to meet the 2008 lead NAAQS.

(g) As required by section 181(b)(2)(A) of the Clean Air Act, EPA has determined that the Cleveland, OH marginal 2008 ozone nonattainment area has attained the NAAQS by the applicable attainment date of July 20, 2016. This determination is based on complete, quality-assured and certified data for the 3-year period 2013-2015.