; (2) in subsection (k)— (A) by striking the first sentence; and (B) by striking the existing and inserting an existing ; and (3) by adding at the end the following new subsection: (l) Concurrent compacts In accordance with the requirements of this Act, an eligible country and the United States may enter into and have in effect more than one Compact at any given time, including a concurrent Compact for purposes of regional economic integration or cross-border collaborations, only if the Board determines that such country is making considerable and demonstrable progress in implementing the terms of the existing Compact and any supplementary agreements thereto. . (b) Conforming amendments The Millennium Challenge Act of 2003 is amended— (1) in subsection (b) of section 609 ( 22 U.S.C. 7708 )— (A) in paragraph (1)— (i) in the matter preceding subparagraph (A), by striking the national development strategy of the eligible country and inserting the national or regional development strategy of the country or countries ; and (ii) in each of subparagraphs (A), (B), (E), and (J), by striking the country each place it appears and inserting the country or countries ; and (B) in paragraph (3)— (i) by inserting or regional development strategy after national development strategy ; and (ii) by inserting or governments of the countries in the case of regional investments after government of the country