“(a) Tariff Modifications Provided for in the Agreement.—The President may proclaim—“(1) such modifications or continuation of any duty,
“(2) such continuation of duty-free or excise treatment, or
“(3) such additional duties,
as the President determines to be necessary or appropriate to carry out or apply articles 2.3, 2.5, and 2.6, and Annex 2-B, Annex 4-B, and Annex 22-A, of the Agreement.
“(b) Other Tariff Modifications.—Subject to the consultation and layover provisions of section 104, the President may proclaim—“(1) such modifications or continuation of any duty,
“(2) such modifications as the United States may agree to with Korea regarding the staging of any duty treatment set forth in Annex 2-B of the Agreement,
“(3) such continuation of duty-free or excise treatment, or
“(4) such additional duties,
as the President determines to be necessary or appropriate to maintain the general level of reciprocal and mutually advantageous concessions with respect to Korea provided for by the Agreement.
“(c) Conversion to Ad Valorem Rates.—For purposes of subsections (a) and (b), with respect to any good for which the base rate in the Schedule of the United States to Annex 2-B of the Agreement is a specific or compound rate of duty, the President may substitute for the base rate an ad valorem rate that the President determines to be equivalent to the base rate.
“(d) Tariff Treatment of Motor Vehicles.—The President may proclaim the following tariff treatment with respect to the following motor vehicles of Korea:“(1) Certain passenger cars.—In the case of originating goods of Korea classifiable under subheading 8703.10.10, 8703.10.50, 8703.21.00, 8703.22.00, 8703.23.00, 8703.24.00, 8703.31.00, 8703.32.00, or 8703.33.00 of the HTS that are entered, or withdrawn from warehouse for consumption—“(A) the rate of duty for such goods shall be 2.5 percent for year 1 of the Agreement through year 4 of the Agreement; and
“(B) such goods shall be free of duty for each year thereafter.
“(2) Electric motor vehicles.—In the case of originating goods of Korea classifiable under subheading 8703.90.00 of the HTS that are entered, or withdrawn from warehouse for consumption—“(A) the rate of duty for such goods shall be—“(i) 2.0 percent for year 1 of the Agreement;
“(ii) 1.5 percent for year 2 of the Agreement;
“(iii) 1.0 percent for year 3 of the Agreement; and
“(iv) 0.5 percent for year 4 of the Agreement; and
“(B) such goods shall be free of duty for each year thereafter.
“(3) Certain trucks.—In the case of originating goods of Korea classifiable under subheading 8704.21.00, 8704.22.50, 8704.23.00, 8704.31.00, 8704.32.00, or 8704.90.00 of the HTS that are entered, or withdrawn from warehouse for consumption—“(A) the rate of duty for such goods shall be—“(i) 25 percent for year 1 of the Agreement through year 7 of the Agreement;
“(ii) 16.6 percent for year 8 of the Agreement; and
“(iii) 8.3 percent for year 9 of the Agreement; and
“(B) such goods shall be free of duty for each year thereafter.
“(4) Definitions.—In this subsection—“(A) the term ‘year 1 of the Agreement’ means the period beginning on the date, in a calendar year, on which the Agreement enters into force [Mar. 15, 2012] and ending on December 31 of that calendar year; and
“(B) the terms ‘year 2 of the Agreement’, ‘year 3 of the Agreement’, ‘year 4 of the Agreement’, ‘year 5 of the Agreement’, ‘year 6 of the Agreement’, ‘year 7 of the Agreement’, ‘year 8 of the Agreement’, and ‘year 9 of the Agreement’ mean the second, third, fourth, fifth, sixth, seventh, eighth, and ninth calendar years, respectively, in which the Agreement is in force.