# Approval and Promulgation of Implementation Plans; State of Iowa
> **Rule** · Direct final rule. · Published 2010-03-05 · Effective 2010-05-04 · 75 FR 10182
## Document
- **Document number:** 2010-4548
- **Category:** air-emissions
- **Federal Register citation:** 75 FR 10182
- **CFR reference:** 40 CFR 52
- **Publication date:** 2010-03-05
- **Effective date:** 2010-05-04
- **State:** IA
- **EPA docket:** EPA-R07-OAR-2010-0011
## Abstract

EPA is taking direct final action to approve revisions to the Iowa State Implementation Plan (SIP) submitted by the State on April 28, 2009. The purpose of these revisions is to update existing air quality rules; make corrections, clarifications and improvements; and to add information with regard to the application of permit exemptions. EPA is approving the SIP revisions pursuant to section 110 of the Clean Air Act.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2010/03/05/2010-4548/approval-and-promulgation-of-implementation-plans-state-of-iowa)
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