# Approval and Promulgation of Air Quality Implementation Plans; Revised Format for Materials Being Incorporated by Reference for New Hampshire
> **Rule** · Final rule; notice of administrative change. · Published 2009-09-30 · Effective 2009-09-30 · 74 FR 50118
## Document
- **Document number:** E9-23472
- **Category:** air-emissions
- **Federal Register citation:** 74 FR 50118
- **CFR reference:** 40 CFR 52
- **Publication date:** 2009-09-30
- **Effective date:** 2009-09-30
- **State:** NH
- **EPA docket:** NH-041-7013a
## Abstract

EPA is revising the format of its regulations for materials submitted by the State of New Hampshire that are incorporated by reference (IBR) into its State Implementation Plan (SIP). The regulations affected by this format change have all been previously submitted by New Hampshire and approved by EPA.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2009/09/30/E9-23472/approval-and-promulgation-of-air-quality-implementation-plans-revised-format-for-materials-being)
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