; (2) in clause (iv), by striking the period at the end and inserting , and ; (3) by inserting after clause (iv) the following: (v) in the case of an exchange of an undervalued currency under a unified exchange rate, if there is a difference between the amount of currency received in exchange for United States dollars and the amount of currency that the recipient would have received absent an undervalued currency. ; and (4) in the flush text following clause (v), as added by paragraph (3), by adding at the end the following: For purposes of clause (v), a determination of the existence and amount of a benefit from the exchange of an undervalued currency shall take into account a comparison of the exchange rates derived from a methodology determined by the administering authority to be appropriate in light of the facts and circumstances to the relevant actual exchange rates, and whether there is government action on the exchange rate that contributes to an undervaluation of the currency. . V Preventing duty evasion 501. Limitation on protest against decisions of U.S. Customs and Border Protection of claims of evasion of antidumping and countervailing duty orders (a) Expansion of limitation Section 514(b) of the Tariff Act of 1930 ( 19 U.S.C. 1514(b) ) is amended— (1) by striking title, determinations and inserting title, or with respect to determinations made under section 517 of this title which are reviewable under section 517(g), determinations