PUBLIC LAW 102-141 —OCT. 28, 1991 105 STAT. 867 ber 31, 1995, in accordance with the plan of the Bureau of the Public Debt. SEC. 531. (a) None of the funds appropriated by this Act may, with Government respect to an individual employed by the Bureau of the Public Debt employees, in the Washington Metropolitan Region on April 10, 1991, be used to separate, reduce the grade or pay of, or carry out any other adverse personnel action against such individual for declining to accept a directed reassignment to a position outside such region, pursuant to a transfer of any such Bureau's operations or functions to Parkersburg, West Virginia. (b) Subsection (a) shall not apply with respect to any individual who, on or after the date of enactment of this Act, declines an offer of another position in the Department of the Treasury which is of at least equal pay and which is within the Washington Metropolitan Region. SEC. 532. None of the funds made available to the United States Customs Service may be used to collect or impose any land border proceesing fee at ports of entry along the United States-Mexico border. SEC. 533. Section 12 of the Presidential Protection Assistance Act of 1976 (18 U.S.C. 3056 note) is amended— (1) in the first sentence by inserting "or at an airport facility used for travel en route to or from such property" after "Public Law 94-524,"; (2) in the fourth sentence by inserting after "$300,000", "at the one nongovernmental property, and $70,000 at the airport facility,"; and (3) by adding at the end thereof the following after "Governments": ": Provided further, That the airport facility is wholly or partially located in a municipality or political subdivison of any State where the permanent resident population is 7,000 or less, the airport is located within 25 nautical miles of the designated nongovernmental property, and where the absence ^ of such Federal assistance would place an undue economic burden on the affected State and local governments". SEC. 534. Where appropriations in this Act are expendable for travel expenses of employees and no specific limitation has been placed thereon, the expenditures for such travel expenses may not exceed the amount set forth therefor in the budget estimates submitted for the appropriations without the advance approval of the House and Senate Committees on Appropriations: Provided, That this section shall not apply to travel performed by uncompensated officials of local boards and appeal boards of the Selective Service System; to travel performed directly in connection with care and treatment of medical beneficiaries of the Department of Veterans Affairs; to travel of the Office of Personnel Management in carrying out its observation responsibilities of the Voting Rights Act; or to payments to interagency motor pools where separately set forth in the budget schedules. TITLE VI—GENERAL PROVISIONS DEPARTMENTS, AGENCIES, AND CORPORATIONS SEC. 601. Funds appropriated in this or any other Act may be used to pay travel to the United States for the immediate family of
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