# Withdrawal of Extension of Deadline for Promulgating Designations for the 2015 Ozone National Ambient Air Quality Standards
> **Rule** · Withdrawal of extension of deadline for promulgating designations. · Published 2017-08-10 · 82 FR 37318
## Document
- **Document number:** 2017-16901
- **Category:** air-emissions
- **Federal Register citation:** 82 FR 37318
- **CFR reference:** 40 CFR 81
- **Publication date:** 2017-08-10
- **EPA docket:** EPA-HQ-OAR-2017-0223
## Abstract

The Environmental Protection Agency (EPA) is announcing that it is withdrawing the 1-year extension of the deadline for promulgating initial area designations for the ozone national ambient air quality standards (NAAQS) that were promulgated in October 2015. Thus, unless and until the Administrator takes additional final action, the 2-year deadline for promulgating designations provided in the Clean Air Act (CAA) applies.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/08/10/2017-16901/withdrawal-of-extension-of-deadline-for-promulgating-designations-for-the-2015-ozone-national)
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