Part 205. PART 205—INVESTIGATIONS TO DETERMINE THE PROBABLE ECONOMIC EFFECT ON THE ECONOMY OF THE UNITED STATES OF PROPOSED MODIFICATIONS OF DUTIES OR OF ANY BARRIER TO (OR OTHER DISTORTION OF) INTERNATIONAL TRADE OR OF TAKING RETALIATORY ACTIONS TO OBTAIN THE ELIMINATION OF UNJUSTIFIABLE OR UNREASONABLE FOREIGN ACTS OR POLICIES WHICH RESTRICT U.S. COMMERCE