3. All measures envisaged under this Treaty for the promotion of a harmonious and balanced development among Member States, particularly, those relating to the formulation of multi-national projects and programmes, shall be implemented concurrently within the time period specified for the attainment of the objectives of the various stages outlined in paragraph 2 of this Article. 4. The transition from one stage to another shall be determined when the specific objectives set in this Treaty or pronounced by the Assembly for a particular stage, are implemented and all commitments fulfilled. The Assembly, on the recommendation of the Council, shall confirm that the objectives to a particular stage have been attained and shall approve the transition to the next stage. 5. Notwithstanding the provisions of the preceding paragraph, the cumulative transitional period shall not exceed forty (40) years from the date of entry into force of this Treaty. 12