uly 16, 1943 PUBLIC LAWS--CHS. 242 , 243, 24 8- Sept. 28 . 29, 1943 54 Stat. 1119, 1124, 1125. 16 U. S. C., Spp. II, § 590y; 16 U. 8.6. i§ 590z-7 , 590z-10. Ante, p. 666. Approval of project. Labor of prisoners of war. 54 Stat. 1120. 16U.S.C.§590z. Duration. 54 Stat. 1122. 16U. S. C. i 590z-3. Minor purchases. 53 Stat. 719. extent deemed necessary by the Secretary of Agriculture for the successful prosecution of the project; and as to each such project the limitations on expenditures provided in sections 1 and 9 shall be inoperative. Appropriations made pursuant to section 12 shall be available for expenditures for continuation of construction on any project heretofore undertaken under the 1940 water conservation appropriation, and such expenditures and those from the 1940 water conservation appropriation may be excluded from the costs of any such project in determining the amounts required to be reimbursed, to the extent the Secretary and the Secretary of Agriculture jointly determine is necessary to keep reimbursable costs within the ability of the water users to repay. No project may be initiated for con- struction or, if heretofore authorized, continued under this subsection unless the Secretary, following consultation with the Secretary of Agriculture, finds that the proposed construction under this subsec- tion is justifiable as an aid in the production of needed agricultural products and the President approves said finding. The utilization of services or labor of prisoners of war under section 2 is authorized, subject to the approval of, and regulations by, the War Department or other Federal agency having control of said prisoners. From and after the date six months after the cessation of hostilities in the present war as determined by proclamation of the President or con- current resolution of the Congress, this subsection shall no longer be of any force or effect except as to projects on which construction has been initiated or continued under this subsection prior to said date." SEC. 6 . Section 5 of the Act is hereby amended by the addition of the following subsection: "(c) Where the aggregate amount involved does not exceed $300, the provisions of section 3709 of the Revised Statutes (41 U. S. C. 5) shall not apply to any purchase or service authorized for the Department of Agriculture under this Act or under the 1940 water conservation appropriation." . Approved July 16, 1943. [CHAPTER 2431 September 28, 1943 AN ACT [S. 1224] To designate the Public Library of the District of Columbia a public depository [Public Law 153] for governmental publications. Public Library, D.C. September 29, 1943 [S. 789] [Public Law 154] Tax-exempt proper- ties, D. C. 56 Stat. 1091. D. C . Code, Supp. II, § 47-801f . Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, That the Public Library of the District of Columbia is hereby constituted a desig- nated depository of governmental publications, and the Superintend- ent of Documents shall supply to such library one copy of each such publication, in the same form as supplied to other designated depositories. Approved September 28, 1943. [CHAPTER 248] AN ACT To provide for the mailing of annual notices to owners of tax-exempt properties in the District of Columbia. Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, That section 6 of Public Law 846, Seventy-seventh Congress, approved December 24, 1942, is amended by striking out the period at the end of the section and inserting a colon and the following: "Provided, That such rules 568 [57 STAT.
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