Review under the State Environmental Policy Act (SEPA) identifies possible adverse environmental effects of a proposed activity. We can be the lead agency for SEPA review of local projects that may affect air quality. Projects that are likely to significantly degrade environmental quality are required to perform an analysis called an environmental impact statement (EIS). The EIS evaluates ways to eliminate or reduce the effects of a project. If a project is unlikely to adversely affect air quality, we will issue a determination of non-significance (DNS). For projects where we are the SEPA lead agency, we will post notices about SEPA actions, comment periods and determinations here.