Energy & environment · 14/04/1994Updated: 10/15/2026 · 1 min read
USEPA Approves Maintenance Plan and Redesignates Area for Air Quality Planning Purposes in Minnesota
Summary
The United States Environmental Protection Agency (USEPA) has approved a redesignation request and maintenance plan for the City of Duluth, Minnesota, as part of the state's State Implementation Plan (SIP) for carbon monoxide.
Original source language: Federal Register — Environmental Protection AgencyOpen original release →