# Approval and Promulgation of Air Quality Implementation Plans; State of Iowa; Revisions to Linn County Air Quality Ordinance
> **Rule** · Direct final rule. · Published 2015-07-28 · Effective 2015-09-28 · 80 FR 44870
## Document
- **Document number:** 2015-18346
- **Category:** air-emissions
- **Federal Register citation:** 80 FR 44870
- **CFR reference:** 40 CFR 52
- **Publication date:** 2015-07-28
- **Effective date:** 2015-09-28
- **State:** IA
- **EPA docket:** EPA-R07-OAR-2015-0357
## Abstract

The Environmental Protection Agency (EPA) is approving revisions to the State Implementation Plan (SIP) for the State of Iowa. The purpose of these revisions is to update the Linn County Air Quality Ordinance, Chapter 10. These revisions reflect updates to the Iowa statewide rules previously approved by EPA and will ensure consistency between the applicable local agency rules and Federally-approved rules.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2015/07/28/2015-18346/approval-and-promulgation-of-air-quality-implementation-plans-state-of-iowa-revisions-to-linn-county)
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