# Determination of Attainment by the Attainment Date; 2008 Ozone National Ambient Air Quality Standards; Cleveland, Ohio and St. Louis, Missouri-Illinois Areas
> **Rule** · Direct final rule. · Published 2016-06-27 · Effective 2016-08-26 · 81 FR 41444
## Document
- **Document number:** 2016-15050
- **Category:** air-emissions
- **Federal Register citation:** 81 FR 41444
- **CFR reference:** 40 CFR 52
- **Publication date:** 2016-06-27
- **Effective date:** 2016-08-26
- **State:** IL
- **EPA docket:** EPA-R05-OAR-2016-0276
## Abstract

The Environmental Protection Agency (EPA) is making a determination, under the Clean Air Act (CAA), that the Cleveland, Ohio (OH) and St. Louis, Missouri-Illinois (MO-IL) areas attained the 2008 ozone National Ambient Air Quality Standards (NAAQS), by the applicable attainment date of July 20, 2016. This determination for each area is based on complete, quality-assured and certified ozone monitoring data for 2013-2015.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2016/06/27/2016-15050/determination-of-attainment-by-the-attainment-date-2008-ozone-national-ambient-air-quality-standards)
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