Each qualified master plumber, journeyman plumber and apprentice shall be issued an identification card attesting his qualifications as a master plumber, journeyman plumber or apprentice. Each person, while engaging in any activity pertaining to plumbing or sewer work, shall identify himself as to his qualification when required to do so by any city official. Any person failing or refusing to so identify himself shall not engage in any plumbing or sewer activity and may be charged with violating the Plumbing Code.
('90 Code, § 7-46.16) (Ord. passed 4-12-76)