Section 20-381. Horse drawn cab driver's license

a. It shall be unlawful for
  any person to operate a horse drawn cab within the city without having a
  valid horse drawn cab driver's license from the commissioner.
    b.  The  biennial  fee  for each such horse drawn cab driver's license
  shall be thirty dollars.
    c. The commissioner shall investigate each applicant as  to  character
  and fitness before such license shall be issued.
    d.  A  horse drawn cab driver's license shall not be issued or renewed
  unless the applicant  therefor  has  submitted  to  the  commissioner  a
  certificate  issued  by  the  commissioner of health pursuant to section
  17-334.1 of the code.
    e. It shall be unlawful for any owner of a horse drawn cab  to  permit
  such  horse  drawn cab to be operated by a person who does not possess a
  current valid driver's license issued pursuant to this section.  In  any
  prosecution of an owner for a violation of this section, it shall not be
  necessary  to  prove  that  the owner knew or should have known that the
  driver was unlicensed, and there shall be a rebuttable presumption  that
  such cab was operated with the permission of the owner.