A/RES/55/263 Noting with appreciation that voluntary contributions have been made to the Mission of Observers, Mindful of the fact that it is essential to provide the Mission of Observers with the necessary financial resources to enable it to fulfil its responsibilities under the relevant resolutions of the Security Council, 1. Takes note of the status of contributions to the United Nations Mission of Observers in Tajikistan as at 30 April 2001, including the contributions outstanding in the amount of 2.1 million United States dollars, representing some 3 per cent of the total assessed contributions from the inception of the Mission of Observers to the period ending 15 May 2000, notes that some 32.8 per cent of the Member States have paid their assessed contributions in full, and urges all other Member States concerned, in particular those in arrears, to ensure payment of their outstanding assessed contributions in full; 2. Expresses concern about the financial situation with regard to peacekeeping activities, in particular as regards the reimbursements to troop contributors that bear additional burdens owing to overdue payments by Member States of their assessments; 3. Expresses its appreciation to those Member States which have paid their assessed contributions in full; 4. Urges all other Member States to make every possible effort to ensure payment of their assessed contributions to the Mission of Observers in full; 5. Expresses concern at the delay experienced by the Secretary-General in deploying and providing adequate resources to some recent peacekeeping missions, in particular those in Africa; 6. Emphasizes that all future and existing peacekeeping missions shall be given equal and non-discriminatory treatment in respect of financial and administrative arrangements; 7. Also emphasizes that all peacekeeping missions shall be provided with adequate resources for the effective and efficient discharge of their respective mandates; 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. Decides to reduce the appropriation approved by the General Assembly in its resolution 53/19 B of 8 June 1999 to 16,370,309 dollars gross (15,291,434 dollars net); 10. Decides also that, for Member States that have fulfilled their financial obligations to the Mission of Observers, there shall be set off against the apportionment, their respective share of the consequential unencumbered balance of 2,416,109 dollars gross (2,180,934 dollars net), in respect of the period ending 30 June 2000, 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 subsequent relevant resolutions and decisions for the ad hoc apportionment of peacekeeping appropriations, the latest of which were resolution 52/230 of 31 March 1998 and decisions 54/456 to 54/458 of 23 December 1999 for the period 1998–2000, and taking into account the scale of assessments for the year 2000, as set out in its resolutions 52/215 A of 22 December 1997 and 54/237 A of 23 December 1999; 3 2 A/55/880.