Regulation & law · 23/09/1997Updated: 10/17/2026 · 1 min read

EPA Grants Conditional Approval to Maryland's 15% Air Quality Plan for D.C. Area

The US Environmental Protection Agency (EPA) has granted conditional approval to the State of Maryland's revised air quality implementation plan for the Metropolitan Washington, D.C. area, which aims to reduce emissions by 15% to meet the Clean Air Act requirements. The plan, submitted in response to the EPA's request, relies on Maryland's inspection and maintenance program, which received final conditional approval in 1997.