The CMAQ program provides a flexible funding source to state and local governments to help them meet Clean Air Act requirements through transportation projects that reduce congestion and improve air quality in those areas.  CMAQ funding is available to areas that are either non-attainment or maintenance areas for particulate matter, ozone, and carbon monoxide.  For more information on the National Ambient Air Quality Standards (NAAQS) and whether your region is in a non-attainment or maintenance area, click on the link below.