# Approval and Promulgation of Implementation Plans; State of Iowa
> **Rule** · Direct final rule. · Published 1999-03-18 · Effective 1999-05-17 · 64 FR 13343
## Document
- **Document number:** 99-6498
- **Category:** air-emissions
- **Federal Register citation:** 64 FR 13343
- **CFR reference:** 40 CFR 52
- **Publication date:** 1999-03-18
- **Effective date:** 1999-05-17
- **State:** IA
- **EPA docket:** IA 059-1059a
## Abstract

The EPA is approving a revision to the Iowa State Implementation Plan (SIP) which provides for the attainment and maintenance of the particulate matter (PM<INF>10</INF>) National Ambient Air Quality Standard (NAAQS) in Buffalo, Iowa. This revision approves two state Administrative Consent Orders (ACOs) which require reductions of PM<INF>10</INF> emissions from two major sources of PM in Buffalo, Iowa. Approval of this SIP revision will make the state ACOs Federally enforceable.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1999/03/18/99-6498/approval-and-promulgation-of-implementation-plans-state-of-iowa)
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