Licensed veterinarians are responsible and accountable for the ordering, inventory, labeling, counting, packaging and delivery of legend drugs utilized in their practice. In accordance with chapter 18.92 RCW, certain nondiscretionary pharmaceutical tasks may be delegated by a veterinarian to a qualified nonveterinarian. The delegating veterinarian is responsible for the supervision of pharmaceutical tasks performed by veterinary medication clerks and veterinary technicians. Records shall be maintained that account for the receipt and disposition of all legend drugs. A registered veterinary medication clerk may be supervised by a licensed veterinarian other than the sponsor subject to the sponsoring veterinarian's approval. The sponsoring veterinarian shall be primarily responsible for the performance and acts of the registered veterinary medication clerk.