Approval and Promulgation of Air Quality Implementation Plans; Montana; Revisions to the Administrative Rules of Montana

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EPA is taking direct final action approving State Implementation Plan (SIP) revisions submitted by the State of Montana on November 1, 2006 and November 20, 2007. The revisions are to the Administrative Rules of Montana; they include minor editorial and grammatical changes, updates to the citations and references to federal and state laws and regulations, other minor changes to conform to federal regulations, and updates to links to sources of information. This action is being taken under section 110 of the Clean Air Act.