3.The intervention agencies shall check the quality of skimmed-milk powder using the analytical methods set out in Part IV of this Annex on the basis of samples taken in accordance with the rules set out in Part VI of this Annex. The checks must establish that, except authorised raw materials used for protein adjustment as referred to in Annex I(4)(b) to Council Directive 2001/114/EC(1) the skimmed milk powder does not contain other products, in particular buttermilk and whey, as defined in Part IV of this Annex.U.K.
Protein adjustment, if applicable, shall occur in the liquid phase. Material used for protein adjustment shall be of Community origin.
However, if the Commission so agrees, Member States may set up a system of self-checking under their own supervision for certain quality requirements and certain approved undertakings.