Energy & environment · 26/01/2010Updated: 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 in 2006 and 2007, which include minor changes to conform to federal regulations and updates to citations and references to laws and regulations.
Original source language: Federal Register — Environmental Protection AgencyOpen original release →