The Committee on Foreign Investment in the United States is an interagency committee chaired by the Secretary of the Treasury to review proposed mergers, acquisitions or takeovers of US persons by foreign interests under section 721 of the Defense Production Act.  CFIUS is a voluntary process that affords an opportunity for foreign  and US persons and organizations considering entering into a covered transaction to submit the transaction for review by CFIUS to assess the impact of the transaction on US national security.  Note that CFIUS and  DCSA FOCI reviews are conducted in parallel but separate processes.