For the purposes of section 38(1)(i) of the Act (a) a person who is a dental therapist may, in the course of dental therapy, administer the following restricted substances to another person in the following specified circumstances:(i) demeclocycline (demethylchlortetracycline), when used in dental preparations;(ii) local anaesthetics, for use in dental treatment;(iii) topical fluorides, when used in dental preparations;(iv) triamcinolone acetonide, when used in dental preparations; and(b) a person who is a registered nurse may, in the course of nursing practice, administer to another person a substance listed in Schedule 2 or 3 to the Poisons List; and(c) a person who is a registered nurse and who may administer to another person a vaccine listed in Schedule 4 to the Poisons List in accordance with a vaccination program approved by the Director of Public Health.(i) has completed an educational program approved by the Secretary relating to the administration of vaccines; and(ii) has been approved by the Secretary to administer vaccines independently