| San Diego Region Conformity Working Group The San Diego Region Conformity Working Group provides federal interagency coordination for the transportation/air quality conformity process. The CWG is comprised of staff representatives from SANDAG, the Air Pollution Control District (APCD), Caltrans, the California Air Resources Board (ARB), the U.S. Department of Transportation (USDOT), and the U.S. Environmental Protection Agency (USEPA). This working group's charter is available below in PDF format. Project Manager(s) |