# Approval and Promulgation of State Implementation Plans; Prevention of Significant Deterioration (PSD); Idaho and Oregon
> **Rule** · Direct final rule. · Published 2003-04-24 · Effective 2003-06-23 · 68 FR 20070
## Document
- **Document number:** 03-10066
- **Category:** air-emissions
- **Federal Register citation:** 68 FR 20070
- **CFR reference:** 40 CFR 52
- **Publication date:** 2003-04-24
- **Effective date:** 2003-06-23
- **State:** ID
- **EPA docket:** OR-03-004a and ID-03-001a
## Abstract

The EPA is taking direct final action to amend the State implementation plans (SIPs) for Idaho and Oregon concerning the PSD program mandated by part C of title I of the Clean Air Act (CAA or Act). The amendments clarify that the newly published provisions of the Federal PSD rule are incorporated into the applicable implementation plans for Indian Country in Idaho and Oregon. The amendments also clarify that the newly published provisions of the Federal PSD rule are incorporated into the applicable implementation plan for other sources in Idaho that were permitted under the Federal PSD program prior to August 22, 1986, the effective date of EPA's approval of Idaho's PSD program as part of the Idaho SIP.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2003/04/24/03-10066/approval-and-promulgation-of-state-implementation-plans-prevention-of-significant-deterioration-psd)
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