# Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes: Oregon
> **Rule** · Direct final rule. · Published 2001-09-20 · Effective 2001-11-19 · 66 FR 48349
## Document
- **Document number:** 01-23218
- **Category:** air-emissions
- **Federal Register citation:** 66 FR 48349
- **CFR reference:** 40 CFR 52
- **Publication date:** 2001-09-20
- **Effective date:** 2001-11-19
- **State:** OR
- **EPA docket:** OR-00-002a
## Abstract

The Environmental Protection Agency (EPA) is approving revisions to Oregon's State Implementation Plan (SIP) which were submitted on November 20, 2000. These revisions consist of the 1996 carbon monoxide (CO) periodic emissions inventory for Klamath Falls, Oregon, and the Klamath Falls CO maintenance plan. Oregon concurrently requested redesignation of Klamath Falls from nonattainment to attainment for CO. EPA is approving the State's request because it meets all of the Clean Air Act (ACT) requirements for redesignation.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2001/09/20/01-23218/approval-and-promulgation-of-implementation-plans-and-designation-of-areas-for-air-quality-planning)
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