US HB1508

Authorizes DHS to establish a program assessing terrorism threats, vulnerabilities, and consequences at pre-planned special events that are not designated as National Special Security Events

Creates a voluntary process for Federal, State, local, Tribal, and territorial officials to request special event ratings that could provide direct security and situational awareness support

Requires risk-based assessments considering factors such as attendance by U.S. officials or foreign dignitaries, event size and venue, and credible terrorism threats

Mandates annual reports to Congress on total events submitted, rating levels assigned, Federal support provided, and rating reassessment requests

Directs DHS to conduct research and development within one year on technologies for enhancing mass gathering security, consistent with constitutional, privacy, and civil liberties protections