Air Plan Approval; Delaware; Philadelphia Area Base Year Inventory for the 2015 Ozone National Ambient Air Quality Standards

Publication Date: 
Friday, March 25, 2022 - 4:00am

The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision formally submitted by the State of Delaware. This revision consists of the base year inventory for the Delaware portion of the Philadelphia-Wilmington-Atlantic City, PA-NJ- MD-DE marginal nonattainment area (Philadelphia Area) for the 2015 ozone national ambient air quality standards (NAAQS). This action is being taken under the Clean Air Act (CAA).

Environmental Protection Agency