Energy & environment · 20/09/2004Updated: 10/17/2026 · 1 min read
EPA Approves Air Quality Implementation Plans for Colorado Areas
Summary
The US Environmental Protection Agency (EPA) has approved a revision to Colorado's air quality implementation plan, redesignating the Lamar and Steamboat Springs areas from nonattainment to attainment for particulate matter with a diameter of 10 micrometers or less, as required by the 1987 standards.
Original source language: Federal Register — Environmental Protection AgencyOpen original release →