# Approval and Promulgation of Implementation Plans; State of Iowa
> **Rule** · Direct final rule. · Published 2013-08-27 · Effective 2013-10-28 · 78 FR 52857
## Document
- **Document number:** 2013-20750
- **Category:** other
- **Federal Register citation:** 78 FR 52857
- **CFR reference:** 40 CFR 52
- **Publication date:** 2013-08-27
- **Effective date:** 2013-10-28
- **State:** IA
- **EPA docket:** EPA-R07-OAR-2013-0446
## Abstract

EPA is approving revisions to the State Implementation Plan (SIP) for the state of Iowa. The purpose of these revisions is to update the Polk County Board of Health Rules and Regulations, Chapter V, Air Pollution. The 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/2013/08/27/2013-20750/approval-and-promulgation-of-implementation-plans-state-of-iowa)
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