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The EPA is issuing a direct final rule with a parallel proposal to make updates to the regulatory text in 40 CFR part 52 to reflect EPA's factual finding that certain nonattainment areas attained the revoked 1997 8-hour ozone NAAQS by their respective attainment dates, and, therefore, were not required to implement antibacksliding obligations associated with failure to timely attain. EPA is adopting these part 52 updates in a direct final rule with a parallel proposal because EPA views these updates as factual and noncontroversial and anticipates no relevant adverse comments. If EPA receive no relevant adverse comments on the proposal, EPA will not take further action on the proposed rule and the final will be effective.