'Phe Department of Energy uses the "Design Basis Threat" (DBT) process to guide and
manage its safeguards and security program throughout the complex. The DBT identifies
the most credible threats posed by adversaries to highly sensitive and classified
Departmental qssets and operations. In essence, the DBT sets the standards that site
safeguards and security programs are required to meet in order to protect Departmental
operations and assets, including special nuclear material (SNM) and classified
information. Post-September 1 1, 2001, the Department initiated a comprehensive effort
to update its DBT to address the new challenges related to those events.