1. The United Kingdom shall adopt the necessary detailed provisions for continuing supervision of compliance with Article 9 of Regulation (EEC) No 1422/78.
2. These provisions shall determine in particular for the application of paragraph 1 of that Article: - a definition of the possible "uses" in the sense of paragraph 1 (a),
- the "other criteria" of an objective nature which may be taken into consideration under the procedure laid down in paragraph 4 of that Article.
Differentiating the selling price on the basis of the use to which the milk is put or on the basis of other objective criteria shall only be excluded in so far as it could lead to a discrimination between milk buyers and in so far as it may be an obstacle to the normal functioning of the common market organization and, in particular, its intervention system and Community aid schemes.
3. The minimum level of the selling prices referred to in Article 9 of Regulation (EEC) No 1422/78 shall be finally determined within the month immediately following the month of delivery of the milk to the buyer and may not be subject to any subsequent reduction, rebate or discount.
This provision shall not, however, prevent bona fide adjustments being made in exceptional cases, in particular where the milk delivered does not comply with the qualitative standards applicable to the transaction concerned.
4. For the application of Article 9 (3) of Regulation (EEC) No 1422/78, the United Kingdom shall adopt measures for the comparison on a regular basis of the first-hand selling prices realized on the United Kingdom market by the principal milk products made from milk sold by the MMB and by similar milk products imported into the United Kingdom from other Member States.
The United Kingdom shall communicate each month to the Commission the lowest first-hand selling price on the United Kingdom market for a commercially significant quantity of each of the principal domestic milk products and milk products imported from other Member States sold on that market during the previous month. The prices communicated should be for comparable qualities.
5. In cases where the first-hand selling price realized on the United Kingdom market by a commercially significant quantity of a domestic product falls below the lowest price of a commercially significant quantity of the milk product of a comparable quality imported from other Member States, an administrative authority, independent of the MMB appointed by the United Kingdom, shall investigate the price realized by the domestic product to determine whether it has fallen below the lowest price of the equivalent imported product as a result of the selling price applied by the MMBs for milk.
The United Kingdom shall communicate the results of these investigations to the Commission within one month of the authority concerned completing its enquiry.
6. Any complaints about failure to comply with Article 9 (3) of Regulation (EEC) No 1422/78 shall be submitted initially to the administrative authority referred to in paragraph 5 together with full supporting evidence. The United Kingdom shall communicate to the Commission a copy of every complaint and of the reasoned reply given to the complainant. A reasoned reply shall be dispatched to the complainant within two months of receipt by the administrative authority of the complaint.
7. If the administrative authority referred to in paragraph 5 establishes that the selling price applied by any of the MMBs for milk for any particular use is in contravention of Article 9 (3) of Regulation (EEC) No 1422/78, then the United Kingdom shall immediately take the necessary measures to ensure compliance, in particular that the MMB or MMBs concerned make the appropriate adjustments in their selling prices for the milk in question and for future sales. Details of these measures shall be communicated immediately to the Commission.
8. Article 2 (2) and (3) shall apply by analogy to the provisions adopted by the United Kingdom pursuant to the present Article.
TITLE III Final provisions