On October 28, 2024, the US Treasury issued a Final Rule regulating outbound investments by US persons in certain sensitive sectors: semiconductors, quantum technologies, and artificial intelligence. Effective January 2, 2025, the Rule mandates notifications or prohibitions for transactions involving “countries of concern,” specifically China and its regions. It applies to US citizens, entities, and controlled foreign entities, setting strict standards for knowledge about transactions. The Rule outlines covered transactions and exceptions, emphasizing due diligence to avoid penalties, which include significant civil and criminal fines. It aims to safeguard national security regarding sensitive technological advancements.