Changes made by 72/455/EEC: Council Decision of 19 December 1972 laying down certain transitional measures for the progressive standardisation of the import terms of Member States as regards third countries
EU Decision 1972/455
No changes made by 72/455/EEC: Council Decision of 19 December 1972 laying down certain transitional measures for the progressive standardisation of the import terms of Member States as regards third countries are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.