On April 20, 2011, the IRS issued proposed regulations under Treas. Reg. §1.267(f)-1(c) (the Proposed Regulations), which will become effective after they are adopted as final regulations. The Proposed Regulations modify the current deferred loss rules to allow the acceleration of a deferred loss in certain circumstances that routinely arise in international restructurings of U.S. companies. Accordingly, corporations in a controlled group that are considering a sale to another member of the controlled group should evaluate the consequences under the Proposed Regulations.