DHS/ICE/PIA-023 Significant Event Notification System

The Significant Event Notification system (SEN) is a reporting and law enforcement intelligence transmission capability developed by U.S. Immigration and Customs Enforcement (ICE), a component of the U.S. Department of Homeland Security (DHS). The ICE Office of Homeland Security Investigations (HSI) developed this system to create reports for ICE field and headquarters managers to provide timely information about critical incidents, activities, and events that involve or impact ICE field staff. The system also handles law enforcement intelligence communication from the ICE Office of Enforcement and Removal Operations (ERO) field offices to field and headquarters managers and ERO and HSI intelligence personnel. The original SEN PIA was published in 2010. ICE is updating this PIA to reflect the current configuration of the program and to accurately document that SEN accesses and stores personally identifiable information (PII) gathered in the course of official ICE investigations or other law enforcement activities. October 2021

Associated SORNs

• DHS/ICE-006 - Intelligence Records System
• DHS/ICE-009 - External Investigations