# Approval and Promulgation of Implementation Plans and Approval Under Section 112(l); State of Iowa
> **Rule** · Final rule. · Published 1999-12-03 · Effective 2000-01-03 · 64 FR 67784
## Document
- **Document number:** 99-31290
- **Category:** air-emissions
- **Federal Register citation:** 64 FR 67784
- **CFR reference:** 40 CFR 52
- **Publication date:** 1999-12-03
- **Effective date:** 2000-01-03
- **State:** IA
- **EPA docket:** 084-1084
## Abstract

EPA is taking final action to approve State Implementation Plan (SIP) revisions submitted by the state of Iowa. These revisions will strengthen the SIP with respect to attainment and maintenance of established air quality standards and with respect to hazardous air pollutants. The effect of this action is to ensure Federal enforceability of the state's air program rule revisions.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1999/12/03/99-31290/approval-and-promulgation-of-implementation-plans-and-approval-under-section-112l-state-of-iowa)
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