Energy & environment · 29/01/2010Updated: 10/17/2026 · 1 min read
EPA Approves Montana's Air Quality Implementation Plan Revisions
Summary
The Environmental Protection Agency (EPA) has approved revisions to Montana's State Implementation Plan (SIP) submitted on January 16, 2009, and May 4, 2009, which include minor changes to the Administrative Rules of Montana and updates to federal law citations.
Original source language: Federal Register — Environmental Protection AgencyOpen original release →