; or (4) is a person who owes allegiance to the United States: Provided , That for purposes of this section, affidavits signed by any such person shall be considered prima facie evidence that the requirements of this section with respect to his or her status are being complied with: Provided further , That for purposes of subsections (2) and (3) such affidavits shall be submitted prior to employment and updated thereafter as necessary: Provided further , That any payment made to any officer or employee contrary to the provisions of this section shall be recoverable in action by the Federal Government: Provided further , That this section shall not apply to any person who is an officer or employee of the Government of the United States on the date of enactment of this Act, or to international broadcasters employed by the Broadcasting Board of Governors, or to temporary employment of translators, or to temporary employment in the field service (not to exceed 60 days) as a result of emergencies: Provided further , That this section does not apply to the employment as Wildland firefighters for not more than 120 days of nonresident aliens employed by the Department of the Interior or the USDA Forest Service pursuant to an agreement with another country. 705. Appropriations available to any department or agency during the current fiscal year for necessary expenses, including maintenance or operating expenses, shall also be available for payment to the General Services Administration for charges for space and services and those expenses of renovation and alteration of buildings and facilities which constitute public improvements performed in accordance with the Public Buildings Act of 1959 (73 Stat. 479), the Public Buildings Amendments of 1972 (86 Stat. 216), or other applicable law. 706. In addition to funds provided in this or any other Act, all Federal agencies are authorized to receive and use funds resulting from the sale of materials, including Federal records disposed of pursuant to a records schedule recovered