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Audit Report: OAS-M-07-04

June 4, 2007

Follow-Up Audit of the National Nuclear Security Administration's Implementation of the 2003 Design Basis Threat Policy

The National Nuclear Security Administration has seven sites that possess Category I special nuclear material (SNM), which requires the highest level of protection under the Department of Energy's Design Basis Threat (DBT) policy. The DBT policy reflects the most credible threats to Departmental assets and operations. In May 2003, the Department revised the DBT to reflect the threat environment existing after the attacks of September 1 1,2001, including terrorism. Changes to site protection programs to implement the 2003 DBT were to be completed by the end of Fiscal Year (FY) 2006.