Changes made by Regulation (EEC) No 2455/89 fixing for the 1988/89 marketing year the yields of olives and olive oil
EU Regulation No 2455/1989
No changes made by Regulation (EEC) No 2455/89 fixing for the 1988/89 marketing year the yields of olives and olive oil are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.