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Suspect/Counterfeit Items

The use of suspect/counterfeit items (S/CIs) can lead to unexpected failures and undue risk of mission impacts, environmental impacts, personal injury, contamination, or death. For these reasons, SLAC has instituted measures to prevent the purchase of as well as to detect and dispose of S/CIs.

  • A suspect item is one in which there is an indication by visual inspection, testing, or other information that it may not conform to established government or industry-accepted specifications or national consensus standards.
  • A counterfeit item is a suspect item that is a copy or substitute without legal right or authority to do so, or one whose material, performance, or characteristics are knowingly misrepresented by the vendor, supplier, distributor, or manufacturer.

Suspect/Counterfeit Items is addressed in the SLAC Quality Assurance Program , which was approved by the Laboratory Director in February 2011, and the Suspect and Counterfeit Items Program Description. Please visit the Suspect/Counterfeit Items SharePoint site for more detailed information on the S/CI prevention process and how to identify counterfeit items (including examples and training materials for SLAC staff).  If you find something you think might be a suspect or counterfeit item and don't know how to proceed, please contact Ken Fouts, CACM Director

Do you have a stash of bolts or a parts bin?

If so, please contact Ken Fouts.

Typical Parts Bin


Close up of Parts Bin

S/CI Grade 5 Bolts


Electrical Components

Material Handling


Other Labs/DOE Guidance

SLAC Awareness

Other Training


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Last update: 12/06/2019