# Approval and Promulgation of Implementation Plans; State of Oregon; Approval of Substitution for Transportation Control Measures
> **Rule** · Final rule; notice of administrative change. · Published 2014-05-22 · Effective 2014-05-22 · 79 FR 29359
## Document
- **Document number:** 2014-11790
- **Category:** air-emissions
- **Federal Register citation:** 79 FR 29359
- **CFR reference:** 40 CFR 52
- **Publication date:** 2014-05-22
- **Effective date:** 2014-05-22
- **State:** OR
- **EPA docket:** EPA-R10-OAR-2014-0139 FRL-9911-23-Region-10
## Abstract

The Environmental Protection Agency (EPA) is making an administrative change to update the Code of Federal Regulations (CFR) to reflect a change made to the Oregon State Implementation Plan (SIP) on December 11, 2013. The EPA has concurred on a substitute transportation control measure (TCM) for the Portland Area Carbon Monoxide Maintenance Plan portion of the Oregon SIP. On January 14, 2014, the Oregon Department of Environmental Quality (ODEQ) submitted a revision to the Oregon SIP requesting that the EPA update its SIP to reflect a substitution of a TCM. The substitution was made pursuant to the TCM substitution provisions contained in the Clean Air Act (CAA). The EPA concurred with this substitution on April 16, 2014. In this administrative action, the EPA is updating the non-regulatory provisions of the Oregon SIP to reflect the substitution. The substitution that the EPA concurred with is an equivalent method for assessing the transit service increase TCM.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2014/05/22/2014-11790/approval-and-promulgation-of-implementation-plans-state-of-oregon-approval-of-substitution-for)
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