# Approval and Promulgation of Implementation Plans for Texas; Approval of Section 179B Demonstration of Attainment, Carbon Monoxide Motor Vehicle Emissions Budget for Conformity, and Contingency Measure for El Paso Carbon Monoxide Nonattainment Area
> **Rule** · Direct final rule. · Published 2003-07-02 · Effective 2003-09-02 · 68 FR 39457
## Document
- **Document number:** 03-16579
- **Category:** air-emissions
- **Federal Register citation:** 68 FR 39457
- **CFR reference:** 40 CFR 52
- **Publication date:** 2003-07-02
- **Effective date:** 2003-09-02
- **State:** TX
- **EPA docket:** TX-42-1-6274a
## Abstract

The EPA is approving, through direct final action, a revision to the Texas State Implementation Plan (SIP), submitted to show attainment of the Carbon Monoxide (CO) National Ambient Air Quality Standard (NAAQS) in the El Paso CO nonattainment area, but for emissions emanating from outside of the United States. The EPA is also approving the El Paso area's CO emissions budget, and a CO contingency measure requirement. The State submitted the revisions to satisfy sections 179B and other Part D requirements of the Federal Clean Air Act (CAA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2003/07/02/03-16579/approval-and-promulgation-of-implementation-plans-for-texas-approval-of-section-179b-demonstration)
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