Section 40-A. Examining boards of plumbers in cities

The existing boards
  for the examination of plumbers in cities of this  state  are  continued
  and  each  shall be known as the examining board of plumbers. Such board
  in each city shall continue to consist of five persons to  be  appointed
  by  the  mayor, of whom two shall be employing or master plumbers of not
  less than ten years' experience in the business  of  plumbing,  and  one
  shall  be a journeyman plumber of like experience, and the other members
  of such board shall be the chief inspector of plumbing and  drainage  of
  such  city,  or officer performing the duties of such inspector, and the
  chief engineer having charge of sewers in such city, but in the event of
  there being no such officers in such city, then any two  other  officers
  having charge or supervision of the plumbing, drainage or sewerage, whom
  the  mayor  shall  designate  or appoint, or two members of the board of
  health of such city having like duties or acting in like capacities.