CFIUS Q4 Developments USA December 23 2020 In the fourth quarter of 2020, the major CFIUS development was the significant revision of one of CFIUS’s two mandatory filing programs. Specifically, on 15 September 15 2020, the Department of Treasury (the Treasury) issued a Final Rule revising CFIUS’s critical technologies mandatory filing program and making certain other clarifying amendments to the other mandatory filing program. In the fourth quarter of 2020, the major CFIUS development was the significant revision of one of CFIUS’s two mandatory filing programs. Specifically, on 15 September 15 2020, the Department of Treasury (the Treasury) issued a Final Rule revising CFIUS’s critical technologies mandatory filing program and making certain other clarifying amendments to the other mandatory filing program. The most significant changes in the Final Rule can be summarized as follows: