No person in the city shall tattoo and/or body pierce any unmarried minor under the age of 18 years unless the parent, guardian or other person having charge and custody of said minor shall first have given his or her written consent to such tattooing and/or body piercing of such minor. The identity of the consenting party shall be verified by driver’s license number or other acceptable photo identification. The written consent must be signed at the tattooing and/or body piercing establishment by the parent, guardian or other person having charge and custody of said minor. A copy of the driver’s license or photo identification shall be attached to and retained with the written consent. The burden for ensuring compliance with this section shall be on the operator.