The provisions of this chapter shall not apply to any facility possessing or maintaining exotic animals which is owned, operated or maintained by any city, county, state or the federal government, including but not limited to public zoos, nor shall it apply to museums, laboratories and research facilities maintained by scientific or educational institutions, nor to private or commercial activities such as circuses, fairs, educational or entertainment exhibits or private zoological parks which are otherwise regulated by law, nor to any recognized program engaged in the training of exotic animals as defined in this title for use as service animals by disabled citizens. (Ord. 1105-15 § 1).