“active substance” means any substance or mixture of substances intended to be used in the manufacture of a veterinary medicine that, when used in its production, becomes an active ingredient of that medicine;

“appropriate authority” has the meaning given by section 10(6);

“manufacture” includes assembly;

“marketing authorisation” means an authorisation to market a veterinary medicine in the United Kingdom;

“veterinary medicine” means a veterinary medicinal product within the meaning given by regulation 2 of the Veterinary Medicines Regulations 2013 (S.I. 2013/2033).