American Automatic Fire Suppression (AAFSI) designs and installs fire sprinkler systems and handles tenant improvement modifications. It also works on underground fire services, fire pumps, standpipes and hose valve stations, and carries out backflow certification, MIC investigation, nitrogen treatment, and clean agent and kitchen hood systems. Quarterly, annual and five-year inspections follow NFPA 25 and Title 19. It is based in Santee in San Diego County and holds California C-16 Fire Protection Contractor licence 731167 (CSLB).