A/RES/57/289 shall be reduced by four posts, and requests the Secretary-General to report on the use of ad litem judges and their impact in the second performance report for the biennium 2002–2003; 18. Requests the Secretary-General to ensure that optimum use is made of ad litem judges, following their introduction, to increase the number of court sessions and extend scheduled working hours; 19. Decides that the financing for the unassessed expenditures incurred in 2001, in the amount of 2,664,500 United States dollars gross (1,880,000 dollars net), shall be drawn from the unencumbered balance in the Special Account for the International Tribunal for Rwanda;10 20. Resolves that, for the biennium 2002–2003, the amount of 197,127,300 dollars gross (177,739,400 dollars net), approved in its resolution 56/248 B for the budget of the International Tribunal for Rwanda, shall be adjusted by the amount of 4,657,600 dollars gross (4,254,100 dollars net) arising for ad litem judges in respect of Security Council resolution 1431 (2002) for a total amount of 201,784,900 dollars gross (181,993,500 dollars net); 21. Authorizes the Secretary-General to enter into commitments, where necessary, in an amount not to exceed 2,177,700 dollars gross (879,200 dollars net) for the resource requirements of the International Tribunal for Rwanda to support the re-costing of resources for the biennium 2002–2003, and requests the Secretary-General to report on the impact thereof in the context of the second performance report for the biennium; 22. Decides to apportion for the year 2003 the amount of 53,047,600 dollars gross (47,759,100 dollars net), including 5,202,750 dollars gross (4,521,450 dollars net), being the increase in assessments among Member States in accordance with the scale of assessments applicable to the regular budget of the United Nations for the year 2003 as set out in its resolutions 55/5 B of 23 December 2000 and 57/4 B of 20 December 2002; 23. Decides also to apportion for the year 2003 the amount of 53,047,600 dollars gross (47,759,100 dollars net), including 5,202,750 dollars gross (4,521,450 dollars net), being the increase in assessments among Member States in accordance with the rates of assessment applicable to peacekeeping operations for the year 2003; 24. 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 paragraphs 22 and 23 above, their respective share in the Tax Equalization Fund in the amount of 19,791,400 dollars, including 403,500 dollars, being the increase of the estimated staff assessment income approved for the International Tribunal for Rwanda for the biennium 2002–2003. 78th plenary meeting 20 December 2002 _______________ 10 See Official Records of the General Assembly, Fifty-seventh Session, Supplement No. 5K and corrigenda (A/57/5/Add.11 and Corr.1–3), chap. V, statement II (cumulative surplus of 5,507,000 dollars). 4