A/RES/50/89 Page 3 7. Authorizes the Secretary-General to enter into commitments for the operation of the Force at a rate not to exceed 10,774,800 dollars gross (10,489,600 dollars net) per month for a period of up to five months beginning 1 February 1996, and to assess the amount of 32,324,400 dollars gross (31,468,800 dollars net) on Member States in accordance with the scheme set out in the present resolution, should the Security Council decide to continue the Force beyond the period of six months authorized under its resolution 1006 (1995); 8. Decides, as an ad hoc arrangement, to apportion the amount referred to in paragraph 7 above 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 and 47/218 A of 23 December 1992 and its decision 48/472 A of 23 December 1993, and taking into account the scale of assessments for the year 1996, 3/ subject to the decision of the Security Council to extend the mandate of the Force beyond 31 January 1996 and the mandate periods to be decided upon by the Council; 9. Decides also that there shall be set off against the apportionment among Member States, as provided for in paragraph 8 above, their respective share in the estimated income of 4,800 dollars other than staff assessment income for the period from 1 February to 30 April 1996, inclusive; 10. 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 8 above, their respective share in the Tax Equalization Fund of the estimated staff assessment income of 850,800 dollars for the period from 1 February to 30 April 1996, inclusive; 11. 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 established by the General Assembly in its resolutions 43/230 of 21 December 1988, 44/192 A of 21 December 1989 and 45/258 of 3 May 1991; 12. Decides to keep the sub-item entitled "United Nations Interim Force in Lebanon" under the agenda item entitled "Financing of the United Nations peace-keeping forces in the Middle East" under review during its fiftieth session. 95th plenary meeting 19 December 1995 3/ See resolution 49/19 B.