(1) In this regulation registered earmark means an earmark which has been registered under the Animal (Brands and Movement) Act 1984 in respect of the identification of an animal implanted with a hormonal growth promotant.(2) If a person implants a hormonal growth promotant into an animal that has not previously been implanted with a hormonal growth promotant, the person must apply a registered earmark to the ear of the animal at the time of implanting the hormonal growth promotant.Penalty: Fine not exceeding 100 penalty units.