# Approval and Promulgation of Air Quality Implementation Plans; Massachusetts and New Hampshire; Enhanced Motor Vehicle Inspection and Maintenance Program
> **Rule** · Direct final rule. · Published 2013-01-25 · Effective 2013-03-26 · 78 FR 5292
## Document
- **Document number:** 2013-00929
- **Category:** air-emissions
- **Federal Register citation:** 78 FR 5292
- **CFR reference:** 40 CFR 52
- **Publication date:** 2013-01-25
- **Effective date:** 2013-03-26
- **State:** MA
- **EPA docket:** EPA-R01-OAR-2009-0433
## Abstract

EPA is approving State Implementation Plan (SIP) revisions submitted by the Commonwealth of Massachusetts and the State of New Hampshire. These revisions include regulations to update the enhanced motor vehicle inspection and maintenance (I/M) programs in Massachusetts and New Hampshire. The revised programs in Massachusetts and New Hampshire include a test and repair network for an on-board diagnostic (OBD2) testing program for model year 1996 and newer vehicles. The intended effect of this action is to approve the revised programs into the Massachusetts and New Hampshire SIPs. This action is being taken in accordance with the Clean Air Act.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2013/01/25/2013-00929/approval-and-promulgation-of-air-quality-implementation-plans-massachusetts-and-new-hampshire)
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