Changes to Regulation (EEC) No 545/81 on the supply of common wheat to the World Food Programme as food aid
EU Regulation No 545/1981
Made by Regulation (EEC) No 660/81 amending Regulation (EEC) No 545/81 of 27 February 1981 on some food-aid action
From legislation.gov.uk's record of changes, the official one: see it there.