U.S. Treasury Department Proposes Significant Expansion of Outbound Investment Rule to Enhance National Security Oversight
On October 22, 2026, the U.S. Department of the Treasury issued a Notice of Proposed Rulemaking (NPRM) to substantially expand the Outbound Investment Rule (OIR) program. This expansion aligns with the Comprehensive Outbound Investment National Security (COINS) Act of 2025. The proposed changes aim to increase oversight of American investments in strategic sectors abroad, particularly in countries of concern such as China, Russia, Iran, Cuba, and North Korea. The NPRM introduces two new industry sectors—hypersonic and advanced aerospace systems, and certain biotechnologies—to the OIR's scope. It also broadens the existing coverage for semiconductor, artificial intelligence, and quantum computing technologies. Investments in these expanded sectors will either be prohibited outright or require advance notification to the Treasury Department, depending on the specific technology and its potential national security implications. The proposal maintains the OIR's dual-pronged approach, categorizing investments b...