# Air Plan Approval; Illinois; Redesignation of the Lemont and Pekin Sulfur Dioxide Nonattainment Areas
> **Rule** · Final rule. · Published 2020-05-26 · Effective 2020-05-26 · 85 FR 31378
## Document
- **Document number:** 2020-09549
- **Category:** air-emissions
- **Federal Register citation:** 85 FR 31378
- **CFR reference:** 40 CFR 52
- **Publication date:** 2020-05-26
- **Effective date:** 2020-05-26
- **State:** IL
- **EPA docket:** EPA-R05-OAR-2019-0330
## Abstract

The Environmental Protection Agency (EPA) is redesignating the Lemont and Pekin sulfur dioxide (SO<INF>2</INF>) areas from nonattainment to attainment of the 2010 SO<INF>2</INF> national ambient air quality standard (2010 SO<INF>2</INF> NAAQS). EPA is also approving Illinois' maintenance plan for these areas. Emissions of SO<INF>2</INF> in the two areas have been reduced, and the areas' monitored air quality is currently better than the 2010 SO<INF>2</INF> NAAQS. EPA proposed to approve this action on February 24, 2020 and received two public comment submissions.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2020/05/26/2020-09549/air-plan-approval-illinois-redesignation-of-the-lemont-and-pekin-sulfur-dioxide-nonattainment-areas)
---
*AI Analytics · CC0 1.0*