SIIV Views 5 meanings found SIIV shows up in European and Latin‑American contexts, describing fire‑and‑intrusion security systems, customs‑information platforms, vehicle‑tax databases, and infrastructure societies. International Securite Incendie Intrusion Video Sistemului Informatic Integrat Vamal Sistema de Información de Impuestos de Vehículos Società Italiana Infrastrutture Viarie Sistema Interativo de Informações dos Vestibulares