The Department of Homeland Security published notice on 20 October 2026 (91 FR 66346, FR Doc. 2026-21447, Docket DHS-2026-0628) of an order under the Federal Acquisition Supply Chain Security Act (FASCSA). The order (1) excludes information technology products and services developed by Hangzhou DeepSeek Artificial Intelligence Co., Ltd and affiliated entities from federal civilian agency procurements, and (2) requires removal of all DeepSeek and affiliate products, “and third-party products and services developed using DeepSeek implementations”, from civilian agency information technology.
What the order says
- Exclusion and Removal Order #2026-01, originally released 24 July 2026, signed by Secretary Markwayne Mullin. It is reproduced in the notice as images of the signed order.
- Scope: federal civilian executive-branch agencies. National security systems are excluded from its scope.
- Agencies may request exceptions within 60 days, and CISA reviews them. The order is reviewed annually.
- The risk summary cites data stored on servers in the People’s Republic of China, collection of personal information, and security weaknesses found in DeepSeek’s iOS app.
… removing all DeepSeek and DeepSeek-affiliate products, and third-party products and services developed using DeepSeek implementations, from civilian agency information technology. — DHS notice, 91 FR 66346
What this piece refuses
This is not a ban on Americans using DeepSeek, and we do not call it one. We do not repeat security claims about DeepSeek beyond what the order’s risk summary states. We have not reported company comment, because the notice contains none.
Bottom line
FASCSA order 2026-01 bars DeepSeek, its affiliates, and products built on DeepSeek implementations from federal civilian IT and procurement. National security systems are excluded, and agencies have 60 days to request exceptions.


