(A) It shall be unlawful for any person to install, remove, alter, repair or replace or cause to be installed, removed, altered, repaired or replaced any plumbing, gas or drainage piping work or any fixture or water heating or treating equipment in a building or premises without first obtaining a permit to do such work from the Administrative Authority.
(B) A separate permit shall be obtained for each building or structure.
(C) No person shall allow any other person to do or cause to be done any work under a permit secured by a permittee except persons in his or her employ.
(1991 Code, § 8.27) Penalty, see § 10.99