# Approval and Promulgation of Air Quality Implementation Plans; Montana; Revisions to the Administrative Rules of Montana; Direct Final Rule
> **Rule** · Direct final rule. · Published 2006-01-24 · Effective 2006-03-27 · 71 FR 3770
## Document
- **Document number:** 06-633
- **Category:** air-emissions
- **Federal Register citation:** 71 FR 3770
- **CFR reference:** 40 CFR 52
- **Publication date:** 2006-01-24
- **Effective date:** 2006-03-27
- **State:** MT
- **EPA docket:** EPA-R08-OAR-2005-MT-0001, FRL-8012-5
## Abstract

EPA is taking direct final action approving State Implementation Plan (SIP) revisions submitted by the State of Montana on August 25, 2004. The revisions are to the Administrative Rules of Montana and correct internal references to state documents; correct references to, or update citations of, Federal documents; and make minor editorial changes. The intended effect of this action is to make federally enforceable those provisions that EPA is approving. This action is being taken under section 110 of the Clean Air Act.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2006/01/24/06-633/approval-and-promulgation-of-air-quality-implementation-plans-montana-revisions-to-the)
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