Artikel XII

1. For the period from the entry into force of the Agreement to 31 December following, the Conference shall make budgetary arrangements and expenditure shall be covered by assessments upon Member States established in accordance with the following two paragraphs.
2. States parties to the Agreement upon its coming into force, and States which may become parties up to 31 December following, shall together bear the whole of the expenditure foreseen in the provisional budgetary arrangements which the Conference may adopt in accordance with paragraph 1 of this Article.
3. The assessments upon States covered by paragraph 2 above shall be established on a provisional basis according to the need and in conformity with Article VII, paragraph 1. On the expiry of the period indicated in paragraph 1 above, a definitive sharing of costs as between these States shall be effected on the basis of actual expenditures. Any excess payment by a State, over and above its definitive share as thus established, shall be placed to its credit.