New rules to tighten security reviews of foreign investments

Congress passed the law last year after an uproar in 2006 over a plan by Dubai-owned DP World to manage six of the largest ports in the United States. The deal fell through after lawmakers from both parties contended the administration and the agency responsible for reviewing security issues had not fully considered all of the security concerns that had been raised.

The proposed regulations issued for a 45-day period of public comment provide an update to regulations issued in 1991, conforming to the new Foreign Investment and National Security Act that Congress passed last July.

"These regulations reflect America's strong and continued commitment to safeguarding U.S. national security in a manner that reinforces the long-standing U.S. policy of welcoming foreign investment," Clay Lowery, Treasury's assistant secretary for international affairs, said in a statement.

They "increase clarity and make additional improvements based on experience," the statement said.

Business groups representing both U.S. and foreign companies praised the decision.

"The regulations provide necessary guidance on which transactions involve both control and a relationship to national security and therefore require a ... review," said a joint statement from four groups the U.S. Chamber of Commerce, the Business Roundtable, the Financial Services Forum and the Organization for International Investment.

The new law is intended to ensure that high-level officials, including the director of national intelligence, participate in decisions concerning the security implications of direct foreign investment.

The law extends the scope of national security reviews to cover deals involving critical infrastructure and energy and requires a second-stage review investigation of most proposed acquisitions by state-owned companies.