; and (2) on approval of the necessary plans and specifications of the projects described in paragraph (1), the construction, operation, and maintenance of those projects by the United States and Mexico, in accordance with the treaty relating to the utilization of the waters of the Colorado and Tijuana Rivers, and of the Rio Grande (Rio Bravo) from Fort Quitman, Texas, to the Gulf of Mexico, and supplementary protocol, signed at Washington February 3, 1944 (59 Stat. 1219), between the United States and Mexico. (d) Funding A project located wholly or partially within Mexico shall be eligible for funding under the program established under section 301(b) if the project is— (1) identified under and consistent with the results of the study under subsection (c)(1); and (2) approved pursuant to subsection (c)(2). (e) Savings provision Nothing in this section limits the authority of the International Boundary and Water Commission under this Act or any other provision of law.