City and County of San Francisco: Department of Emergency Management [website]   [open html - 29KB]

"The Department of Emergency Management consists of two divisions. The Division of Emergency Communications (DEC) provides 9-1-1 emergency dispatch services for Police, Fire, and the Emergency Medical System. The Division of Emergency Services (DES) coordinates disaster preparation and response planning in partnership with City agencies, non-profit entities, schools and the private sector. DES also houses the Emergency Medical Services Agency (EMSA), which coordinates all of the components of the City's prehospital care system."