A/RES/54/271 Page 3 8. Endorses the conclusions and recommendations contained in the report of the Advisory Committee on Administrative and Budgetary Questions,3 and requests the Secretary-General to ensure their full implementation; 9. Requests the Secretary-General to take all necessary action to ensure that the Observer Mission is administered with a maximum of efficiency and economy; 10. Also requests the Secretary-General, in order to reduce the cost of employing General Service staff, to continue efforts to recruit local staff for the Observer Mission against General Service posts, commensurate with the requirements of the Mission; 11. Decides, as an ad hoc arrangement, to apportion the additional amount of 290,200 dollars gross (485,200 dollars net) already appropriated by the General Assembly in its resolution 53/232 in respect of the period ending 30 June 1998 among Member States in accordance with the composition of groups set out in paragraphs 3 and 4 of General Assembly resolution 43/232 of 1 March 1989, as adjusted by the Assembly in its resolutions 44/192 B of 21 December 1989, 45/269 of 27 August 1991, 46/198 A of 20 December 1991, 47/218 A of 23 December 1992, 49/249 A of 20 July 1995, 49/249 B of 14 September 1995, 50/224 of 11 April 1996, 51/218 A to C of 18 December 1996 and 52/230 of 31 March 1998 and its decisions 48/472 A of 23 December 1993, 50/451 B of 23 December 1995 and 54/456 to 54/458 of 23 December 1999, and taking into account the scale of assessments for the year 1998, as set out in its resolution 52/215 A of 22 December 1997; 12. Decides also that, in accordance with the provisions of its resolution 973 (X) of 15 December 1955, the apportionment among Member States, as provided for in paragraph 11 above, shall take into consideration the decrease in their respective share in the Tax Equalization Fund of the estimated staff assessment income of 195,000 dollars approved for the Observer Mission for the period ending 30 June 1998; 13. Decides further to appropriate the amount of 1,076,720 dollars gross (1,073,320 dollars net) for the maintenance of the Observer Mission in respect of the period ending 30 June 1999, in addition to the amount of 19,439,280 dollars gross (18,452,580 dollars net) already appropriated under the terms of General Assembly resolution 52/242 of 26 June 1998 and inclusive of the amount of 1,076,720 dollars gross (1,073,320 dollars net) from the amount of 1,534,400 dollars gross (1,426,600 dollars net) authorized by the Advisory Committee under the terms of section IV of Assembly resolution 49/233 A of 23 December 1994; 14. Decides, as an ad hoc arrangement, to apportion among Member States the additional amount of 1,076,720 dollars gross (1,073,320 dollars net) for the maintenance of the Observer Mission in respect of the period ending 30 June 1999, in accordance with the scheme set out in the present resolution and taking into account the scale of assessments for the year 1999, as set out in its resolutions 52/215 A, and 54/237 A of 23 December 1999; 15. Decides also 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 14 above, their respective share in the Tax Equalization Fund of the estimated additional staff assessment income of 3,400 dollars approved for the Observer Mission in respect of the period ending 30 June 1999; 3 A/54/841/Add.5. /...