Veterinary biologics produced in accordance with WAC 16-42-015 or 16-42-017 may be sold over the counter as well as by persons or firms properly licensed under chapter 18.64 RCW and by any veterinarian licensed under chapter 18.92 RCW. Persons other than licensed veterinarians or state or federal veterinarians may purchase and administer veterinary biologics to their own animals, except for those veterinary biologics restricted in WAC 16-42-026.