EPA is correcting the ozone designation for Montgomery County, Ohio to attainment. The designation status was not correctly printed in 40 CFR 81.336. EPA published a final rule designating Montgomery, Greene, Miami and Clark Counties, Ohio nonattainment for ozone, see 43 FR 8962 (March 3,1978), 43 FR 45993 (October 5, 1978), and the Code of Federal Regulations, 40 CFR part 81. On November 6, 1991 (56 FR 56694), codified at 40 CFR 81.336, the above areas were classified as moderate nonattainment for ozone. More recently, on May 5, 1995 (60 FR 22289) EPA redesignated the above areas to attainment for ozone due to ambient air monitoring data showing no violations of the ozone National Ambient Air Quality Standards during the period from 1990 through 1992. The designation became effective on July 5, 1995. Inadvertently, however, the revised Montgomery County, Ohio ozone designation status was not correctly printed in 40 CFR 81.336, as intended by the May 5, 1995, Federal Register action. It is being corrected in this rule.