The Committee on Foreign Investment in the United States (CFIUS, commonly pronounced "sifius") is an inter-agency committee of the United States Government that reviews the national security implications of foreign investments in U.S. companies or operations. Chaired by the United States Secretary of the Treasury, CFIUS includes representatives from 16 U.S. departments and agencies, including the Defense, State and Commerce departments, as well as (most recently) the Department of Homeland Security. CFIUS was established by President Gerald Ford's Executive Order in 1975. President Reagan delegated the review process to the Committee on Foreign Investment in the United States with the Executive Order 12661 in 1988. This was in response to U.S. Congress giving authority to the President to review foreign investments, in the form of Exon-Florio Amendment.
All companies proposing to be involved in an acquisition by a foreign firm are supposed to voluntarily notify CFIUS, but CFIUS can review transactions that are not voluntarily submitted.
CFIUS' primary concern in most reviews is that technology or funds from an acquired U.S. business might be transferred to a sanctioned country as a result of being acquired by a foreign acquirer.
CFIUS reviews begin with a 30-day decision to authorize a transaction or begin a statutory investigation. If the latter is chosen, the committee has another 45 days to decide whether to permit the acquisition or order divestment. Most transactions submitted to CFIUS are approved without the statutory investigation. However, in 2012 about 40% of the 114 cases submitted to CFIUS proceeded to investigation.