The UK Government’s designation for a contractor facility that has been approved to hold or access protectively marked or classified information and assets under a government contract. List X status is granted where contractual security requirements justify enhanced physical, personnel, and information security measures, and is commonly required for certain defence and national security contracts.
List X
The UK Government designation for a contractor facility approved to hold or access classified information under a government contract.
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Related Glossary Terms
The official compilation of permanent U.S. federal laws, providing the statutory basis for many contracting requirements.
A global classification system used to categorize products and services for procurement and spend analysis.
A unique 12-character identifier assigned via SAM.gov to organizations doing business with the federal government, replacing the DUNS number.
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