Changes made by 77/507/EEC: Commission Decision of 20 July 1977 excluding from admission free of Common Customs Tariff duties the group of scientific apparatus described as 'VHRR/VTPR System'
EU Decision 1977/507
No changes made by 77/507/EEC: Commission Decision of 20 July 1977 excluding from admission free of Common Customs Tariff duties the group of scientific apparatus described as 'VHRR/VTPR System' are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.