PF 2027-01 Notice of Order Regarding Exclusion and Removal of DeepSeek Products and Services from Federal Civilian Executive Branch Information Technology Systems and Procurements

DATE: October 27, 2026

TO: HCAs/Senior Contracting Partners/Contracting Officers

FROM: Director, Contract and Financial Assistance Policy Division, Office of Policy, Office of Acquisition Management

SUMMARY:  This Policy Flash (PF) informs Department of Energy (DOE) and National Nuclear Security Administration (NNSA) contracting personnel of the issuance of Federal Acquisition Supply Chain Security Act (FASCSA) Exclusion and Removal Order #2026-01 by the Department of Homeland Security (DHS).

Pursuant to the authority granted by the Federal Acquisition Supply Chain Security Act of 2018, 41 U.S.C. 1321-1328, and implementing regulations at 41 CFR 201-1, following review of the Federal Acquisition Security Council Recommendation and affiliated evidence, the Secretary of Homeland Security has ordered: (1) exclusion of information technology products and services developed by Hangzhou DeepSeek Artificial Intelligence Co., Ltd (DeepSeek), to include affiliated entities as defined in 48 CFR 2.101, from federal civilian agency procurements; and (2) removal of all DeepSeek and DeepSeek-affiliate products, and third-party products and services developed using DeepSeek implementations, from civilian agency information technology (Federal Register Docket DHS-2026-0628; FR Doc. 2026-21447). FASCSA orders are a type of supply chain security order governed by the Federal Acquisition Supply Chain Security Act of 2018 and the Federal Acquisition Security Council final rule for complying with exclusion or removal orders and sharing certain supply chain risk information. The Council determined that the acquisition and operation of Super Intelligence (SI) models, code artifacts, and services associated with Hangzhou DeepSeek present unacceptable supply-chain vulnerabilities, data-exfiltration risks, and integrity hazards within federal computing environments.

As a result of this order, effective immediately, DOE offices are directed to remove all DeepSeek products from their networks and may not enter into contracts which include DeepSeek products or services.

Further information on the scope, product coverage, and other requirements and stipulations of this order can be found in Attachment 1 - FASCSA 2026-01 Removal and Exclusion Order, as well as online on the Federal Register at https://www.federalregister.gov/documents/2026/10/20/2026-21447/notice-of-order-regarding-exclusion-and-removal-of-deepseek-products-from-federal-civilian-executive

Questions concerning this policy flash should be directed to the Contract and Financial Assistance Policy Division at DOE_oapmpolicy@hq.doe.gov. 

For NNSA questions concerning this policy flash, please contact Acquisition Policy and Oversight Division, Policy & Oversight Branch (NA-PAS-111), at (505) 845-5639.

Questions regarding the technical requirements and scope of the order should be directed to  FASCSA.Orders@cisa.dhs.gov . For questions related to DOE-specific large language models (LLMs) and other SI/AI systems, please contact IM-20_Policy@hq.doe.gov