Regulation & law · 10/10/2012
EPA Approves Maryland's Air Quality Plan for Washington DC-MD-VA Nonattainment Area
The US Environmental Protection Agency (EPA) has approved Maryland's 2002 base year emissions inventory for fine particulate matter (PM 2.5) in the Washington DC-MD-VA nonattainment area, which meets the Clean Air Act requirements to address nonattainment standards for the 1997 PM 2.5 National Ambient Air Quality Standard (NAAQS).
Original source language: Federal Register — All DocumentsOpen original release →