Changes made by Regulation (EEC) No 644/73 of the Commission of 2 March 1973 on a provisional variation in the new Member…
EU Regulation No 644/1973
No changes made by Regulation (EEC) No 644/73 of the Commission of 2 March 1973 on a provisional variation in the new Member… are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.