Energy & environment · 19/01/1994Updated: 10/15/2026 · 1 min read
Environmental Protection Agency Approves Revision to Oregon State Implementation Plan
Summary
The Environmental Protection Agency (EPA) has approved a revision to the Oregon State Implementation Plan, which includes the adoption and implementation of a vehicle inspection/maintenance program to meet National Ambient Air Quality Standards for carbon monoxide in the Portland and Medford-Ashland nonattainment areas.
Original source language: Federal Register — Environmental Protection AgencyOpen original release →