62 STAT.] 80TH CONG., 2D SESS.-CHS. 763, 764-JUNE 30, 1948 [CHAPTER 763] AN ACT To include as allowable service under the Act of July 6, 1945, service performed in the military forces and on war transfer by employees in the field service of the Post Office Department. Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, That section 25 of the Act entitled "An Act to reclassify the salaries of postmasters, officers, and employees of the Postal Service; to establish uniform procedures for computing compensation; and for other purposes", approved July 6, 1945 (U. S . C ., 1946 edition, title 39, sec. 875), is hereby amended to read as follows: "SEC. 25. Allowable service under the provisions of this Act shall be only such continuous active service as has been rendered and shall not include previous periods or terms of employment, except that in the case of employees who have been separated or shall hereafter be separated from the field service of the Post Office Department for military duty, or to comply with a war transfer as defined by the Civil Service Commission, the periods or terms of such service immedi- ately preceding entry into military service or immediately preceding such transfer, as well as the time engaged in military service and service on war transfer, shall be construed as allowable service, and pro rata credit shall be given for the time engaged in military service and service on war transfer for each year of such service." SEC. 2. Any person who prior to the enactment of this Act received any amounts the payment of which is authorized for the first time by this Act is hereby relieved of all liability to refund such amounts to the United States; and in the audit and settlement of the accounts of any postmaster, or of any other designated disbursing officer of the Post Office Department or postal service, the payment of such amounts shall be considered to have been authorized. The Postmaster Gen- eral is hereby authorized and directed to repay, out of any funds hereafter appropriated pursuant to the authority of this Act, any amounts heretofore credited to the employee or refunded by him to the United States on account of such receipt by him of unauthorized payments. SEC. 3. There are hereby authorized to be appropriated such sums as may be necessary to carry out the provisions of this Act. SEC. 4. The amendment made by the first section of this Act to sec- tion 25 of the Act of July 6, 1945, shall take effect as of July 1, 1945. Approved June 30, 1948. [CHAPTER 764] AN ACT To amend section 11 of the Act approved June 5, 1942 (56 Stat. 317), relating to Mammoth Cave National Park in the State of Kentucky, and for other purposes. Be it enacted by the Senate and House of Representatives of the UnitedStates of America in Congressassembled,That the second para- graph of section 11 of the Act approved June 5, 1942 (56 Stat. 317,319; 16 U. S . C . sec. 404c-ll), is hereby amended to read as follows: "In order to provide for acquisition of property on behalf of the United States, in accordance with the provisions of this section, there is hereby authorized to be appropriated the sum of not to exceed $350,000. Any of the funds appropriated pursuant to the provisions hereof which are not needed to acquire property as authorized by this section may, in the discretion of the Secretary of the Interior, be used to acquire lands and interests in lands required for the development of 1165 June 30, 148 [S. 27301 [Public Law 8530 Post Office Depart- ment. 69 Stat. 461. Allowable service. Relief of liability. Repayment of re- funds. Appropriation au- thorized. Effective date. Supra. June 30, 1948 [H. R. 2096] [Public Law 861] Mammoth Cave National Park, Ky. Appropriation an- thorzed. Aoquisltiono(land&
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