Definition
Under the Federal Acquisition Supply Chain Security Act (41 U.S.C. § 4713), the US government can exclude vendors whose products pose national-security risks to federal information systems.
Key Points
- 2026-09-25: DC Circuit 2-1 upheld Pentagon blacklisting anthropic — encoded Claude usage restrictions constitute supply chain risk (2026-09-25-trump-anthropic-pentagon-blacklist-appeals)
- Split with California district court finding designation unlawful
- Precedent for AI vendor usage policies as government procurement factor