Environment

Air Quality Plans

2011_Base_Year_Emissions_InventoryWashington DC-MD-VA 2008 Ozone NAAQS Nonattainment Area Base Year 2011  Emissions Inventory

The District of Columbia, the State of Maryland, and the Commonwealth of Virginia are  submitting to the United States Environmental Protection Agency (USEPA) a  comprehensive base year emissions inventory for 2011 to meet the requirements for the  Washington DC-MD-VA 2008 ozone National Ambient Air Quality Standard (NAAQS)   nonattainment area.

 

Washington_DC-MD-VA_1997PM2.4_Maintenance_PlanWashington DC-MD-VA 1997 PM2.5 Maintenance Plan and Redesignation Request                               

The District of Columbia, the State of Maryland, and the Commonwealth of Virginia request that the United States Environmental Protection Agency (USEPA) redesignate the Washington DC-MD-VA 1997 fine particulate (PM2.5) nonattainment area to attainment for this standard pursuant to the provisions under § 107 of the federal Clean Air Act (CAA).

 

PlantoImproveAirQualityintheWashingtonDCMDVARegionState Implementation Plan (SIP) for Fine Particle (PM2.5) Standard and 2002 Base Year Inventory for the Washington DC-MD-VA Nonattainment Area

The Metropolitan Washington Air Quality Committee (MWAQC) approved an air quality plan to reduce fine particle pollution in the region. The plan goes beyond Clean Air Act requirements in an effort to gain further reductions in fine particle pollution. The plan was adopted by MWAQC on March 7, 2008. 

 

8hourPlantoImproveAirQualityintheWashingtonDCMDVARegionState Implementation Plan (SIP) ("Moderate Area SIP") for 8-Hour Ozone Standard

The EPA-required plan, called a State Implementation Plan (SIP), presents air quality data showing the region will meet the federal standard for ozone -- a harmful gas formed when the sun heats polluted air -- by the fall of 2009. The plan includes a list of measures to reduce pollution from ozone-forming gases.

 

PlantoImproveAirQualityintheWashingtonDCMDVARegion2004

Revised Plan to Improve Air Quality in the Washington, DC-MD-VA Region, State Implementation Plan (SIP) (“Severe Area SIP”) for Washington, DC-MD-VA Ozone Nonattainment Area 

The Severe Area Attainment Plan for the Metropolitan Washington Nonattainment Area, focuses on improving air quality in the Washington region to meet the national air quality standard for ozone (one-hour ozone standard). The Plan consists of two Rate of Progress demonstrations, for the period 1999-2002 and for 2002-2005; and an attainment demonstration for 2005. The Metropolitan Washington Air Quality Committee approved the revised “Plan to Improve Air Quality in the Washington, DC-MD-VA Region,” on February 19, 2004.