Article 3

F2Competent authorities shall, by using appropriate sampling plans, ensure that official samples are taken from at least 50 % of consignments presented for import at border inspection posts F3.... In case a consignment consists of aquaculture products from more than one establishment of origin, samples shall be taken for each individual establishment.

The official samples taken pursuant to paragraph 1 shall undergo analytical tests for the detection of residues of pharmacologically active substances as defined in Article 2(a) of Regulation (EC) No 470/2009, and in particular of chloramphenicol, tetracycline, oxytetracycline, chlortetracycline and of metabolites of nitrofurans.