Article 3
1. The annual tariff quota shall be divided into three subquotas: (a) Subquota I: 572000 tonnes for the United States of America; (b) Subquota II: 38000 tonnes for Canada; (c) Subquota III: 2371600 tonnes for other third countries. 2. Where, in the course of a year, it emerges that there is a serious shortfall in the take-up of subquota I or II, the Commission may, with the agreement of the third country concerned, adopt arrangements to transfer the unused quantities to the other subquotas, in accordance with the procedure laid down in Article 23 of Regulation (EEC) No 1766/92. 3. Subquota III shall be divided into four quarterly tranches of 592900 tonnes each for the following periods: (a) Tranche No 1 - 1 January to 31 March; (b) Tranche No 2 - 1 April to 30 June; (c) Tranche No 3 - 1 July to 30 September; (d) Tranche No 4 - 1 October to 31 December. 4. Unused quantities in any tranche except tranche No 4, referred to in subparagraph 3(d), shall be automatically allocated to the following tranche. Where a tranche is exhausted, the Commission may anticipate the opening of the following tranche in accordance with the procedure laid down in Article 23 of Regulation (EC) No 1766/92.