++++ 1. Agriculture ° Common organization of the markets ° Milk and milk products ° Additional levy on milk ° Choice of formula A ° Trader liable to pay the levy ° Producer ° Substitution of the purchaser for the producer in the event of irregularities committed by the former in calculating the reference quantities ° Exclusion (Commission Regulations No 1371/84, Art. 12(2) and (4), No 3005/85 and No 1546/88, Art. 15(4)) 2. Member States ° Obligations ° Obligation to impose penalties in respect of infringements of Community law ° Scope (EEC Treaty, Art. 5)