The DOE Security Clause, DEAR 952.204-2, was amended on May 18, 2009 to augment the background check requirement and to add a drug test requirement as prerequisites for processing a request for an access authorization (security clearance). Please check to ensure that all applicable contracts have been amended to include these updated requirements. Expect personnel security to return contractor requests for access authorizations that do not include the required information. A summary of the required information is attached.