A/RES/55/33 (iii) The further reduction of non-strategic nuclear weapons, based on unilateral initiatives and as an integral part of the nuclear arms reduction and disarmament process; (iv) Concrete agreed measures to reduce further the operational status of nuclear weapons systems; (v) A diminishing role for nuclear weapons in security policies so as to minimize the risk that these weapons will ever be used and to facilitate the process of their total elimination; (vi) The engagement, as soon as appropriate, of all nuclear-weapon States in the process leading to the total elimination of their nuclear weapons; 4. Recognizes that the realization of a world free of nuclear weapons will require further steps by the nuclear-weapon States, including: (a) The continuation of the nuclear disarmament process beyond START III; (b) Deeper reductions by all nuclear-weapon States, unilaterally or through negotiation, in nuclear weapons in the process of working towards their elimination; 5. Invites the nuclear-weapon States to keep the States Members of the United Nations duly informed of the progress or efforts made towards nuclear disarmament; 6. Welcomes the ongoing efforts in the dismantlement of nuclear weapons, notes the importance of the safe and effective management of the resultant fissile materials and calls for arrangements by all nuclear-weapon States to place, as soon as practicable, the fissile material designated by each of them as no longer required for military purposes under the International Atomic Energy Agency or other relevant international verification and arrangements for the disposition of such material for peaceful purposes in order to ensure that such material remains permanently outside military programmes; 7. Stresses the importance of further development of the verification capabilities, including International Atomic Energy Agency safeguards, that will be required to provide assurance of compliance with nuclear disarmament agreements for the achievement and maintenance of a nuclear-weapon-free world; 8. Calls upon all States to redouble their efforts to prevent the proliferation of nuclear and other weapons of mass destruction, including their means of delivery, confirming and strengthening, if necessary, their policies not to transfer equipment, materials or technology that could contribute to the proliferation of those weapons; 9. Also calls upon all States to maintain the highest possible standards of security, safe custody, effective control and physical protection of all materials that could contribute to the proliferation of weapons of mass destruction; 10. Stresses the importance of the Model Protocol Additional to the Agreement(s) between State(s) and the International Atomic Energy Agency for the Application of Safeguards12 with a view to enhancing nuclear non-proliferation, and encourages all States which have not done so to conclude an additional protocol with the International Atomic Energy Agency as soon as possible; 11. Welcomes the adoption by the General Conference of the International Atomic Energy Agency on 22 September 2000 of resolution GC(44)/RES/19, which contains elements of a plan of action to promote and facilitate the conclusion and 29