any legal entity: (a) which is formed on the own initiative of growers of the following categories of product listed in Article 1 (2): (i) fruit and vegetables (ii) fruit (iii) vegetables (iv) products intended for processing (v) citrus fruit (vi) nuts (vii) mushrooms; (b) which has in particular the aim of: (1) ensuring that production is planned and adjusted to demand, particularly in terms of quality and quantity; (2) promoting concentration of supply and the placing on the market of the products produced by its members; (3) reducing production costs and stabilizing producer prices; (4) promoting the use of cultivation practices, production techniques and environmentally sound waste-management practices in particular to protect the quality of water, soil and landscape and preserve and/or encourage biodiversity; (c) the rules of association of which require its producer members, in particular, to: (1) apply the rules adopted by the producer organization relating to production reporting, production itself, marketing and protection of the environment; (2) belong to only one of the producer organizations referred to in point (a) in respect of a given holding's production of one of the categories of product listed in point (a) (3) market their entire production concerned through the producer organization. However, where the producer organization so authorizes and in compliance with the terms and conditions it lays down, the producer members may: - sell not more than 25 % of their production if they are members of fruit and vegetable producer organizations as referred to in point (a) (i) and not more than 20 % of their production if they are members of other types of producer organization directly on their holdings to consumers for their personal needs, and furthermore ...