A/RES/54/267 Page 4 17. Decides further that, in accordance with the provisions of its resolution 973 (X) of 15 December 1955, there shall be set off against the apportionment among Member States, as provided for in paragraph 16 above, their respective share in the Tax Equalization Fund of the estimated staff assessment income of 411,988 dollars approved for the Force for the period from 1 to 31 July 2000; 18. Decides that, for Member States that have fulfilled their financial obligations to the Force, there shall be set off against the apportionment, as provided for in paragraph 16 above, their respective share of the unencumbered balance of 8,329,300 dollars gross (8,084,600 dollars net) in respect of the period from 1 July 1998 to 30 June 1999; 19. Decides also that, for Member States that have not fulfilled their financial obligations to the Force, their share of the unencumbered balance of 8,329,300 dollars gross (8,084,600 dollars net) in respect of the period from 1 July 1998 to 30 June 1999 shall be set off against their outstanding obligations; 20. Decides further, as an ad hoc arrangement, to apportion among Member States the amount of 134,597,553 dollars gross (130,065,688 dollars net) for the period from 1 August 2000 to 30 June 2001, at a monthly rate of 12,236,141 dollars gross (11,824,153 dollars net), in accordance with the scheme set out in the present resolution, and taking into account the scale of assessments for the year 2000, as set out in its resolutions 52/215 A and 54/237 A, and for the year 2001,4 subject to the decision of the Security Council to extend the mandate of the Force beyond 31 July 2000; 21. Decides that, in accordance with the provisions of its resolution 973 (X), there shall be set off against the apportionment among Member States, as provided for in paragraph 20 above, their respective share in the Tax Equalization Fund of the estimated staff assessment income of 4,531,864 dollars approved for the Force for the period from 1 August 2000 to 30 June 2001; 22. Emphasizes that no peacekeeping mission shall be financed by borrowing funds from other active peacekeeping missions; 23. Encourages the Secretary-General to continue to take additional measures to ensure the safety and security of all personnel under the auspices of the United Nations participating in the Force; 24. Invites voluntary contributions to the Force in cash and in the form of services and supplies acceptable to the Secretary-General, to be administered, as appropriate, in accordance with the procedure and practices established by the General Assembly; 25. Decides to include in the provisional agenda of its fifty-fifth session, under the item entitled “Financing of the United Nations peacekeeping forces in the Middle East”, the sub-item entitled “United Nations Interim Force in Lebanon”. 98th plenary meeting 15 June 2000 4 To be adopted by the General Assembly.