61 STAT.] 80TH CONG. , IST SESS.-CH. 211 -JULY 9, 1947 the projects stipulated in the treaty between the United States and Mexico signed at Washington on February 3, 1944, $4,000,000, to be immediately available, and to remain available until expended: Pro- vided, That no expenditures shall be made for the Lower Rio Grande flood-control project for construction on any land, site, or easement in connection with this project except such as has been acquired by donation and the title thereto has been approved by the Attorney General of the United States: Provided further, That expenditures for the Rio Grande bank-protection project shall be subject to the provisions and conditions contained in the appropriation for said project as provided by the Act approved April 25, 1945 (Public Law 40): Provided further, That no expenditures shall be made for the acquisition of lands or easements for sites for boundary fences except for procurement of abstracts or certificates of title, payment of record- ing fees, and examination of titles: Provided further That unex- pended balances of appropriations for construction under the Inter- national Boundary and Water Commission available for the fiscal year 1947 shall be merged with this appropriation and shall continue available until expended. Rio Grande emergency flood protection: For emergency flood-control work, including protection, reconstruction, and repair of all structures under the jurisdiction of the International Boundary and Water Com- mission, United States and Mexico, threatened or damaged by flood- waters of the Rio Grande, which have heretofore been authorized and erected under the provisions of treaties between the United States and Mexico, or in pursuance of Federal laws authorizing improvements on the Rio Grande, $25,000, to be immediately available, to be merged with the unobligated balance of the appropriation for this purpose in the Department of State Appropriation Act 1947, and to remain available until expended. Appropriations for the International Boundary and Water Com- mission, United States and Mexico, are hereby made available for payment of claims pursuant to part 2 of the Federal Tort Claims Act of 1946, Public Law 601. Salaries and expenses, American sections, international commis- sions: For necessary expenses to enable the President to perform the obligations of the United States under certain treaties between the United States and Great Britain in respect to Canada, including per- sonal services in the District of Columbia; stenographic reporting services by contract; printing and binding; and hire of passenger motor vehicles; as follows: For the International Joint Commission, United States and Canada, under the terms of the treaty between the United States and Great Britain signed January 11, 1909 (36 Stat. 2448), including the salary of one Commissioner on the part of the United States who shall serve at the pleasure of the President (the other Commissioners to serve in that capacity without compensation therefor); salaries of clerks and other employees appointed by the Commissioners on the part of the United States with the approval solely of the Secretary of State; travel expenses and compensation of witnesses in attending hearings of the Commission at such places in the United States and Canada as the Commission or the American Commissioners shall determine to be necessary. $37,200; for special and technical investigations in connection with matters falling within the jurisdiction of the International Joint Commission, United States and Canada, including the purchase of three passenger automobiles; and the Secretary of State is authorized to transfer to any department or independent establishment of the Government with the consent of the head thereof, any part of this amount for direct expenditure by such department or establishment for the purposes set forth in this 285 59 Stat. 1219. Lower Rio Grande flood-control project. 59 Stat. 89. International Boundary and Water Commission. 60 Stat. 455. 60 Stat. 843. 28 U. . C. §C921, 922. International Joint Commission, U. 8 . and Canada. Transfer of funds.