Decision 86/649/EEC is hereby amended as follows:
1. Article 6 (2) is replaced by the following:
'2. The Community shall refund:
- 50 % of the expenditure referred to in the first indent of paragraph 1,
- 30 % of the expenditure referred to in the second indent of paragraph 1 made before 1 January 1989,
- 50 % of the expenditure referred to in the second indent of paragraph 1 made as from 1 January 1989.'
2. In Article 7 the following shall be added to paragraph 1:
'However, as from 1989 payments may be made in advance, of up to 35 % of the estimated total annual reimbursement, within the limits of the budgetary appropriations, on presentation of the supporting documents by the Portuguese authorities to the Commission.'