Energy & environment · 05/08/2004Updated: 10/17/2026 · 1 min read
EPA Approves Colorado's Air Quality Implementation Plan for Lamar and Steamboat Springs
Summary
The US Environmental Protection Agency (EPA) has approved a State Implementation Plan revision submitted by Colorado, 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 Clean Air Act. This decision is based on Colorado's compliance with the Clean Air Act and its maintenance plans for the affected areas.