San Diego Association of Governments

The San Diego Association of Governments (SANDAG) is the council of governments and metropolitan planning organization (MPO) for the San Diego region of California. It is a joint-powers agency whose members are San Diego County and its 18 incorporated cities, and it is governed by a 21-seat Board of Directors of mayors, city councilmembers, and county supervisors drawn from those jurisdictions.
In addition to its role as the region's MPO, SANDAG serves as the regional transportation planning agency (RTPA), San Diego County Regional Transportation Commission, regional toll authority, and the agency responsible for the Regional Housing Needs Assessment for San Diego County. It administers TransNet, a countywide half-cent sales tax for transportation, and has shared capital-planning and fare-setting authority over the region's two public-transit agencies: the San Diego Metropolitan Transit System (MTS) and the North County Transit District (NCTD).