Section 54. Office room; expenses a city charge

Each of such examining
  boards of plumbers shall have power to procure suitable quarters for the
  transaction of business, to provide the necessary books  and  stationery
  and  to employ a clerk to keep such books and record the transactions of
  such board. The board  of  estimate  and  apportionment  or  the  common
  council  of a city as the case may be shall annually insert in their tax
  levy a sufficient sum to meet all the expenditures  incurred  under  the
  provisions  of  this  article.    The  expenses  incurred by the several
  examining boards of plumbers in the execution  and  performance  of  the
  duties  imposed  by  this  article  shall  be a charge on the respective
  cities and shall be audited, levied, collected  and  paid  in  the  same
  manner as other city charges are audited, levied, collected and paid.