The San Diego Association of Governments (abbreviated SANDAG) is an association of local San Diego County governments. It is the metropolitan planning organization for the County, with policy makers consisting of mayors, councilmembers, and County Supervisors, and also has capital planning and fare setting powers for the county's transit systems, the San Diego Metropolitan Transit System and North County Transit District, some of which was assumed by the Metropolitan Transit Development Board.
SANDAG, along with the Southern California Association of Governments, is the only metropolitan planning agency in Southern California.
References
San Diego Association of Governments Wikipedia(Text) CC BY-SA