Changes made by Regulation (EEC) No 3103/73 of the Commission of 14 November 1973 on certificates of origin and applications…
EU Regulation No 3103/1973
No changes made by Regulation (EEC) No 3103/73 of the Commission of 14 November 1973 on certificates of origin and applications… are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.