1. Member States shall lay down rules, in accordance with the standards referred to in point (n)(i) of Article 2, to ensure the uniqueness of the codes displayed by the transponders implanted by issuing bodies referred to in Article 5(1) where they issue identification documents in accordance with Article 9.
2. The rules laid down in accordance with paragraph 1 shall be applied without compromising the system of identification laid down by the issuing body in another Member State that carried out the identification of a registered equine animal in accordance with this Regulation.