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Anti-Tamper (AT) Measures

FMS: 
Yes
BPC: 
No
Note Input Responsibility: 
CWD
Note Usage: 

Mandatory for Amendments and Modifications to FMS LOAs with a CWD Approval Date prior to January 1, 2011, that add materiel to a case that previously included only services.

Effective January 1, 2011, this note may no longer be used on LOAs as note wording has been incorporated into the Standard Terms and Conditions.

References : 
Note Text : 

"The U.S. Government may incorporate Anti-Tamper (AT) protection into weapon systems and components that contain Critical Program Information (CPI). The AT protection will not impact operations, maintenance, or logistics provided that all terms delineated in the system technical documentation are followed."