3.—(1) These Regulations do not apply to a veterinary medicinal product based on radio-active isotopes.
(2) They do not apply in relation to a product intended for administration in the course of a procedure licensed under the Animals (Scientific Procedure) Act 1986(1), except that, if the animals are to be put into the human food chain, the only products that may be administered to the animals are—
(a)authorised veterinary medicinal products administered in accordance with their marketing authorisation, or
(b)products administered in accordance with an animal test certificate granted under paragraph 9 of Schedule 4.