Regulation & law · 13/11/2002Updated: 10/17/2026 · 1 min read
EPA Proposes Designation of Areas for Air Quality Purposes in Metropolitan Washington, DC
Summary
The Environmental Protection Agency (EPA) has proposed a finding that the Metropolitan Washington, DC area has failed to meet the national ozone air quality standard, and if finalized, would be reclassified as a severe nonattainment area, requiring the District of Columbia, Maryland, and Virginia to revise their air quality plans by specific dates.
Original source language: Federal Register — All DocumentsOpen original release →