Treasury proposes rules for some outbound U.S. investments in AI and chips

The U.S. Treasury Department on October 22, 2026 proposed updates to its Outbound Investment Security Program. The press release says the notice of proposed rulemaking follows the Comprehensive Outbound Investment Security Act, which Congress passed inside the fiscal 2026 defense authorization. The proposal is not a final rule. Treasury says final regulations will come later and will set an effective date.

The statute, as Treasury describes it, does two things. It tells the department to require U.S. persons to notify Treasury about some transactions with covered foreign persons involved in “notifiable” technologies. It also tells the department to prohibit other transactions involving “prohibited” technologies. Treasury says the law names five sectors for which the secretary may set technical parameters: semiconductor technologies and microelectronics, artificial intelligence systems, quantum information technologies, high-performance computing and supercomputing, and hypersonic systems.

The same release says the law lets the secretary add further technologies, after consulting the relevant congressional committees and using a notice-and-comment process, when those technologies would enable military, intelligence, surveillance, or cyber-enabled capabilities of a country of concern. Treasury says it has added biotechnology in this proposal.

What the announcement says is in the proposal

Treasury’s release lists the pieces of the program the notice is meant to spell out. They include who counts as a U.S. person, including controlled foreign entities; which transactions are covered; definitions; who counts as a covered foreign person; exceptions; the information a notification must contain; how to ask for non-binding feedback and how to submit confidential information; what knowledge standard applies and what inquiry Treasury expects before a deal; and what conduct would be treated as a violation, along with penalties.

One bullet in that list is worth quoting because the wording is Treasury’s and it is not the same phrase as the statute’s “artificial intelligence systems.” The release says the notice includes technical specifications for covered transactions in “semiconductor technology and microelectronics, quantum information technologies, super intelligence systems, hypersonic systems, high-performance computing and supercomputing, and biotechnology.” The press release does not define “super intelligence systems” or explain how that phrase relates to the artificial-intelligence category named earlier. This story does not fill that gap.

Secretary Scott Bessent is quoted saying the proposed regulations “would strengthen the existing Outbound Investment Security Program to prevent our adversaries from using U.S. investment to develop critical technologies that threaten U.S. national security.” Assistant Secretary Christopher Pilkerton is quoted saying the proposal is “designed to address risks that can arise when foreign adversaries try to benefit from U.S. investment in key technology sectors.”

Comments, and what is not in force

Treasury is asking for comment on the scope of a covered transaction, definitions, notification requirements, and penalty and enforcement processes, among other points. Written comments go to the official notice on regulations.gov. The press release says the deadline is the one printed in that notice. It does not restate the date, so this story does not either.

The release also says the department will consider the comments before it issues final implementing regulations. Until those exist, the October 22 document is a proposal.

Why it matters (analysis)

For anyone placing capital into AI or chip companies abroad, the operative fact is the status of the document. Treasury has said which technology families the statute covers, that biotechnology is an added category in the proposal, and that notice and prohibition are the two tools. It has not, in this press release, published the technical thresholds that would tell a reader which AI system is notifiable and which deal is banned. Those lines, if they are in the notice, have to be read there. Treating the press release as a compliance checklist would go past what it says.

This report is not legal, tax, or investment advice.

This report is not legal, financial, or health advice. See the disclaimer.