Changes made by Commission Decision of 21 December 1992 amending the guarantees for the introduction of molluscs into zones for which a programme for Bonamia ostreae and Marteilia refringens has been approved (93/55/EEC)
EU Decision 1993/55
No changes made by Commission Decision of 21 December 1992 amending the guarantees for the introduction of molluscs into zones for which a programme for Bonamia ostreae and Marteilia refringens has been approved (93/55/EEC) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.