# Approval and Promulgation of Air Quality Implementation Plans; New Hampshire; Revised Carbon Monoxide Maintenance Plan for Nashua
> **Rule** · Direct final rule. · Published 2007-09-10 · Effective 2007-11-09 · 72 FR 51564
## Document
- **Document number:** E7-17633
- **Category:** air-emissions
- **Federal Register citation:** 72 FR 51564
- **CFR reference:** 40 CFR 52
- **Publication date:** 2007-09-10
- **Effective date:** 2007-11-09
- **State:** NH
- **EPA docket:** EPA-R01-OAR-2007-0497
## Abstract

EPA is approving a State Implementation Plan (SIP) revision submitted by the State of New Hampshire. This SIP submittal contains revisions to the carbon monoxide (CO) maintenance plan for Nashua, New Hampshire. Specifically, New Hampshire has revised the contingency plan portion of the original maintenance plan. The intended effect of this action is to approve this revision to the Nashua CO maintenance plan. This action is being taken in accordance with the Clean Air Act.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2007/09/10/E7-17633/approval-and-promulgation-of-air-quality-implementation-plans-new-hampshire-revised-carbon-monoxide)
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