# Approval and Promulgation of Air Quality Implementation Plans; Connecticut, Maine, Massachusetts, New Hampshire; Infrastructure SIPs for the 1997 and 2006 Fine Particulate Matter Standards
> **Rule** · Final rule. · Published 2012-10-16 · Effective 2012-11-15 · 77 FR 63228
## Document
- **Document number:** 2012-25300
- **Category:** air-emissions
- **Federal Register citation:** 77 FR 63228
- **CFR reference:** 40 CFR 52
- **Publication date:** 2012-10-16
- **Effective date:** 2012-11-15
- **State:** CT
- **EPA docket:** EPA-R01-OAR-2011-0317 and EPA-R01-OAR-2011-0321 (CT)
## Abstract

EPA is approving most elements of submittals from the States of Connecticut, Maine, Massachusetts, and New Hampshire. We are also conditionally approving certain elements of these submittals, as well as disapproving a few elements of Massachusetts' submittals. The submittals outline how each state's State Implementation Plan (SIP) meets the requirements of section 110(a) of the Clean Air Act (CAA) for both the 1997 and 2006 fine particulate matter (PM<INF>2.5</INF>) national ambient air quality standards (NAAQS). These actions are being taken under the Clean Air Act.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/10/16/2012-25300/approval-and-promulgation-of-air-quality-implementation-plans-connecticut-maine-massachusetts-new)
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