Changes made by 87/429/EEC: Commission Decision of 20 July 1987 authorizing Portugal to import from third countries at a reduced levy certain quantities of raw sugar during the period 1 July 1987 to 30 June 1988 (Only the Portuguese text is authentic)
EU Decision 1987/429
No changes made by 87/429/EEC: Commission Decision of 20 July 1987 authorizing Portugal to import from third countries at a reduced levy certain quantities of raw sugar during the period 1 July 1987 to 30 June 1988 (Only the Portuguese text is authentic) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.