Energy & environment · 07/09/1994Updated: 10/18/2026 · 1 min read

EPA Approves Maryland's Revised Air Quality Plan to Address Ozone Deficiencies

The Environmental Protection Agency (EPA) has approved a revised State Implementation Plan (SIP) submitted by the State of Maryland to address ozone deficiencies in the Baltimore and Washington, D.C. areas, as required by the Clean Air Act.