Changes made by 73/188/EEC: Commission Decision of 4 June 1973 exempting the United Kingdom of Great Britain and Northern Ireland from applying to certain species the Council Directive of 29 September 1970 concerning the marketing of vegetable seed (Only the English text is authentic)
EU Decision 1973/188
No changes made by 73/188/EEC: Commission Decision of 4 June 1973 exempting the United Kingdom of Great Britain and Northern Ireland from applying to certain species the Council Directive of 29 September 1970 concerning the marketing of vegetable seed (Only the English text is authentic) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.