# Approval and Promulgation of Air Quality State Implementation Plans; Texas: Motor Vehicle Inspection and Maintenance Program
> **Rule** · Final Rule. · Published 2001-11-14 · Effective 2001-12-14 · 66 FR 57261
## Document
- **Document number:** 01-27587
- **Category:** air-emissions
- **Federal Register citation:** 66 FR 57261
- **CFR reference:** 40 CFR 52
- **Publication date:** 2001-11-14
- **Effective date:** 2001-12-14
- **State:** TX
- **EPA docket:** TX-134-3-7528
## Abstract

The EPA is approving State Implementation Plan (SIP) revisions submitted by the State of Texas on establishing a Vehicle Inspection and Maintenance (I/M) Program for the Dallas/Fort Worth (DFW), Houston- Galveston Area (HGA), and El Paso (ELP) nonattainment areas. EPA proposed approval of the DFW I/M SIP revision on January 22, 2001, and the HGA I/M SIP revision on June 11, 2001. The revisions replace the two-speed idle test in Dallas, Tarrant, and Harris Counties with ASM-2, expand the upgraded I/M program to cover the entire DFW nonattainment area plus five additional counties, and the eight county HGA nonattainment area. The revisions also implement On-Board Diagnostic (OBD) testing in the DFW and HGA testing areas, and El Paso County. The I/M SIP revisions are part of the DFW and HGA Attainment Demonstrations.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2001/11/14/01-27587/approval-and-promulgation-of-air-quality-state-implementation-plans-texas-motor-vehicle-inspection)
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