A/RES/49/227 Page 4 gross (9.9 million dollars net) to be apportioned in accordance with the scheme set out in the present resolution, subject to the decision of the Security Council to extend the mandate of the Mission beyond 8 February 1995 and with the prior concurrence of the Advisory Committee as to the exact amount to be committed; 16. Invites voluntary contributions to the Verification Mission in cash and in the form of services and supplies acceptable to the SecretaryGeneral, 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; 17. Requests the Secretary-General to take all necessary action to ensure that the Verification Mission is administered with a maximum of efficiency and economy; 18. Decides to include in the provisional agenda of its fiftieth session the item entitled "Financing of the United Nations Angola Verification Mission". 95th plenary meeting 23 December 1994 ANNEX Special arrangements with regard to the application of article IV of the Financial Regulations of the United Nations 1. At the end of the twelve-month period provided for in regulation 4.3, any unliquidated obligations of the financial period in question relating to goods supplied and services rendered by Governments for which claims have been received or which are covered by established reimbursement rates shall be transferred to accounts payable; such accounts payable shall remain recorded in the Special Account for the United Nations Angola Verification Mission II until payment is effected. 2. (a) Any other unliquidated obligations of the financial period in question owed to Governments for goods supplied and services rendered, as well as other obligations owed to Governments, for which required claims have not yet been received, shall remain valid for an additional period of four years following the end of the twelve-month period provided for in regulation 4.3; (b) Claims received during this four-year period shall be treated as provided for under paragraph 1 of the present annex, if appropriate; At the end of the additional four-year period, any unliquidated (c) obligations shall be cancelled and the then remaining balance of any appropriations retained therefor shall be surrendered.