# Approval and Promulgation of Implementation Plans; State of Iowa
> **Rule** · Direct final rule. · Published 2008-04-15 · Effective 2008-06-16 · 73 FR 20177
## Document
- **Document number:** E8-7815
- **Category:** other
- **Federal Register citation:** 73 FR 20177
- **CFR reference:** 40 CFR 52
- **Publication date:** 2008-04-15
- **Effective date:** 2008-06-16
- **State:** IA
- **EPA docket:** EPA-R07-OAR-2008-0241
## Abstract

EPA is approving a revision to the Iowa State Implementation Plan submitted on January 16, 2008. The revision includes changes to the definition of "permitting authority" in each of Iowa's rules used for compliance with EPA's Clean Air Interstate Rule. Iowa's SIP revision is in response to EPA's request of Iowa to revise the definitions to ensure that all allowances issued in the EPA Budget Trading Programs can be traded and used for compliance with the allowance-holding requirement in any State in the program.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2008/04/15/E8-7815/approval-and-promulgation-of-implementation-plans-state-of-iowa)
---
*AI Analytics · CC0 1.0*