A/RES/58/303 levels set out in General Assembly resolution 55/235, as adjusted by the Assembly in its resolution 55/236 of 23 December 2000 and updated in its resolution 58/256 of 23 December 2003, taking into account the scale of assessments for 2004 and 2005 as set out in its resolution 58/1 B of 23 December 2003, subject to a decision of the Security Council to extend the mandate of the Mission; 13. 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 12 above, their respective share in the Tax Equalization Fund of 2,339,800 dollars, comprising the estimated staff assessment income of 2,124,200 dollars approved for the Observer Mission, the prorated share of 198,500 dollars of the estimated staff assessment income approved for the support account and the prorated share of 17,100 dollars of the estimated staff assessment income approved for the United Nations Logistics Base; 14. Decides that, for Member States that have fulfilled their financial obligations to the Observer Mission, there shall be set off against their apportionment, as provided for in paragraph 12 above, their respective share of the unencumbered balance and other income in the amount of 4,096,100 dollars in respect of the financial period ended 30 June 2003, in accordance with the levels set out in General Assembly resolution 55/235, as adjusted by the Assembly in its resolution 55/236 and its resolution 57/290 A of 20 December 2002, taking into account the scale of assessments for 2003 as set out in its resolutions 55/5 B of 23 December 2000 and 57/4 B of 20 December 2002; 15. Decides also that, for Member States that have not fulfilled their financial obligations to the Observer Mission, there shall be set off against their outstanding obligations their respective share of the unencumbered balance and other income in the amount of 4,096,100 dollars in respect of the financial period ended 30 June 2003, in accordance with the scheme set out in paragraph 14 above; 16. Decides further that the increase of 142,200 dollars in the estimated staff assessment income in respect of the financial period ended 30 June 2003 shall be added to the credits from the amount referred to in paragraphs 14 and 15 above and that the respective shares of Member States therein shall be applied in accordance with the provisions of those paragraphs, as appropriate; 17. Emphasizes that no peacekeeping mission shall be financed by borrowing funds from other active peacekeeping missions; 18. Encourages the Secretary-General to continue to take additional measures to ensure the safety and security of all personnel participating in the Observer Mission under the auspices of the United Nations; 19. Invites voluntary contributions to the Observer Mission 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; 20. Decides to include in the provisional agenda of its fifty-ninth session the item entitled “Financing of the United Nations Observer Mission in Georgia”. 91st plenary meeting 18 June 2004 3