Changes made by 81/25/EEC: Commission Decision of 31 December 1980 on the grant of financial assistance within the framework of the supplementary measures established in favour of the United Kingdom (Wales) (Only the English text is authentic)
EU Decision 1981/25
No changes made by 81/25/EEC: Commission Decision of 31 December 1980 on the grant of financial assistance within the framework of the supplementary measures established in favour of the United Kingdom (Wales) (Only the English text is authentic) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.