# Implementation of the Revoked 1997 8-Hour Ozone National Ambient Air Quality Standards; Updates to 40 CFR Part 52 for Areas That Attained by the Attainment Date; Withdrawal of Direct Final Rule
> **Rule** · Withdrawal of direct final rule. · Published 2020-12-09 · Effective 2020-12-09 · 85 FR 79129
## Document
- **Document number:** 2020-26960
- **Category:** air-emissions
- **Federal Register citation:** 85 FR 79129
- **CFR reference:** 40 CFR 52
- **Publication date:** 2020-12-09
- **Effective date:** 2020-12-09
- **EPA docket:** EPA-HQ-OAR-2019-0611
## Abstract

Due to the receipt of adverse comment, the Environmental Protection Agency (EPA) is withdrawing the October 9, 2020, direct final rule to update the Code of Federal Regulations (CFR) to codify its findings that nine areas in four states attained the revoked 1997 8-hour ozone National Ambient Air Quality Standards (NAAQS) by the applicable attainment dates. The EPA will address all comments received in a subsequent final rule for which the EPA will not institute a second comment period.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2020/12/09/2020-26960/implementation-of-the-revoked-1997-8-hour-ozone-national-ambient-air-quality-standards-updates-to-40)
---
*AI Analytics · CC0 1.0*