; and (2) by adding at the end the following: (f) Transportation of exports of crude oil on vessels documented under laws of the United States (1) In general Except as provided in paragraph (6), as a condition to export crude oil, the President shall require that a person exporting crude oil transport the crude oil on a vessel that meets the requirements described in paragraph (3). (2) Purpose The purpose of the requirement under paragraph (1) is to ensure that, of all crude oil exported by vessel in a calendar year, the following percentage is exported by a vessel that meets the requirements described in paragraph (3): (A) In each of the 7 calendar years following the calendar year in which this subsection is enacted, not less than 3 percent. (B) In each of the 8th, 9th, and 10th calendar years following the calendar year in which this subsection is enacted, not less than 6 percent. (C) In each of the 11th, 12th, and 13th calendar years following the calendar year in which this subsection is enacted, not less than 8 percent. (D) In the 14th calendar year following the calendar year in which this subsection is enacted and each calendar year thereafter, not less than 10 percent. (3) Requirements for vessels A vessel meets the requirements described in this paragraph— (A) with respect to each of the 4 calendar years following the calendar year in which this subsection is enacted— (i) if— (I) the vessel is documented under the laws of the United States; and (II) with respect to any retrofit work necessary for the vessel to export crude oil— (aa) such work is done in a shipyard in the United States; and (bb) any component of the vessel listed in paragraph (4) that is installed during the course of such work is manufactured in the United States; or (ii) if— (I) the vessel is built in the United States; (II) the vessel is documented under the laws of the United States