PUBLIC LAWS-CH. 211-JULY 9, 1947 International activi- International activities: For necessary expenses, without regard to ties. Post, p. 62. section 3709 of the Revised Statutes, as amended, of participation by 41U.S.C5. the United States upon approval by the Secretary of State, in interna- tional activities which arise from time to time in the conduct of foreign affairs and for which specific appropriations have not been provided pursuant to treaties, conventions, or special Acts of Congress, including personal services in the District of Columbia or elsewhere without regard to civil-service and classification laws; employment of aliens; travel expenses without regard to the Standardized Government 44 Stat. 68 . Travel Regulations and the Subsistence Expense Act of 1926, as C amended; transportation of families and effects under such regulations as the Secretary of State may prescribe; stenographic and other serv- ices; rent of quarters by contract or otherwise; hire of passenger motor vehicles; contributions for the share of the United States in expenses of international organization; printing and binding without regard 40 Stat. 1270. to section 11 of the Act of March 1, 1919 (44 U. S . C . 111); entertain- ment and representation allowances as authorized by section 901 (3) 60 Stat. 1026. of the Act of August 13, 1946 (Public Law 724) (not to exceed 22 U.S.. . 1131(3). $75,000); $3,600,000. International Boundary and Water Commission, United States and 24 Stat. 1011;26 Stat. Mexico: For expenses necessary to enable the United States to meet Stat. 2953; 48 Stat. its obligations under the treaties of 1884, 1889, 1905, 1906, 1933, and 1621; 59 Stat. 1219. 1944 between the United States and Mexico, and to comply with the 49 Stat. 660 . Act approved August 19, 1935, as amended (22 U. S . C . 277 -277d), including operation and maintenance of the Rio Grande rectification, canalization, flood control, bank protection, boundary fence, and sanitation projects; examinations, preliminary surveys, and investiga- tions; detail plan preparation and construction (including surveys and operation and maintenance and protection during construction); and Rio Grande emergency flood protection; construction and opera- tion of gaging stations; purchase of map-reproduction machines and other equipment and machinery; personal services in the District of 60 Stat.c80. Columbia; services in accordance with section 15 of the Act of August 2, 1946, Public Law 600, at rates for individuals not in excess of $100 per diem; travel expenses, including, in the discretion of the Commis- sioner, expenses (not to exceed $500) of attendance at meetings of organizations concerned with the activities of the International Boundary and Water Commission which may be necessary for the efficient discharge of the responsibilities of the Commission; printing and binding; purchase of eighteen (thirteen for replacement only) pas- senger motor vehicles hire, with or without personal services, of work animals, and animal-drawn and motor-propelled vehicles and equip- ment; acquisition by donation, purchase, or condemnation, of real and personal property, including expenses of abstracts and certificates of title; purchase of ice and drinking water; inspection of equipment, supplies, and materials by contract; drilling and testing of founda- tions and dam sites, by contract if deemed necessary, purchase of Leasing private planographs and lithographs, and leasing of private property to remove therefrom sand, gravel, stone, and other materials, without regard to section 3709 of the Revised Statutes, as amended (41 U. S. C . 5); as follows: Salaries and expenses: For salaries and expenses, regular boundary activities, including examinations, preliminary surveys, and investi- gations, $950.000. Construction: For detail plan preparation and construction of proj- 48 Stat. 1621 . ects authorized by the Convention concluded February 1,1933, between the United States and Mexico, the Acts approved August 19, 1935, as 49 Stat. 66061. amended (22 U. S. C. 277 -277d), August 29, 1935 (Public Law 392), 49Stat.1463;5Stat. June 4, 1936 (Public Law 648), June 28, 1941 (22 U. S. C. 277f), and 338. 284 [61 STAT.