26.—(1) A qualified person shall carry out the duties specified in Article 30 of Directive 81/851.
(2) Where the qualified person certifies a batch of a registered product in a register or equivalent document in accordance with Article 30.2 of Directive 81/851, he shall keep the register or equivalent document at the disposal of the relevant enforcement authority for a period of five years from and including the date on which the certification is made.