Changes made by Regulation (EEC) No 1561/70 of the Commission of 31 July 1970 laying down conditions for awarding contracts…
EU Regulation No 1561/1970
No changes made by Regulation (EEC) No 1561/70 of the Commission of 31 July 1970 laying down conditions for awarding contracts… are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.