1. The Member States are hereby authorized under the conditions laid down in paragraph 2, to provide for the printing under official supervision of the prescribed information on packages of cereal seed of the categories "basic seed" and "certified seed" of all kinds.
2. The following conditions shall apply in respect of the authorization granted in paragraph 1: (a) the prescribed information shall be printed or stamped indelibly on the package;
(b) the layout and the colour of the printing or the stamp shall be in accordance with the model for the label used in the Member State concerned;
(c) of the prescribed information, at least that required under Annex IV, (A) (a) (3.3a), and (6) of Directive 66/402/EEC shall be printed or stamped when samples are taken pursuant to Article 7 (2) of the abovementioned Directive, the printing or stamping being done officially or under official supervision;
(d) in addition to the prescribed information, each package shall have an officially attributed individual serial number which shall have been printed or stamped indelibly or perforated on it by the package printing firm ; this firm shall inform the certification authority of the quantities of packages issued, including their serial numbers;
(e) the certification authority shall keep records of the quantities of seed thus marked, including the number and contents of the packages of each lot, as well as the serial numbers referred to under (d);
(f) producers' records shall be subject to supervision by the certification authority.