Changes made by Commission Regulation (EEC) No 1799/79 of 13 August 1979 amending Regulations (EEC) No 1391/78 and (EEC) No 2962/78 concerning the rules for the application of the system of premiums for the non-marketing of milk and milk products and for the conversion of dairy herds: Commission Regulation (EEC) No 2962/78 of 15 December 1978 amending Regulation (EEC) No 1391/78 with regard to the identity card arrangements introduced in connection with the system of premiums for the non-marketing of milk