Section 44. Powers and duties

The  several  examining boards of plumbers
  shall have power and it shall be their duty:
    1. To meet at stated intervals in their respective cities; they  shall
  also meet whenever the board of health of such city or the mayor thereof
  shall in writing request them so to do.
    2.  To  have  jurisdiction over and to examine all persons desiring or
  intending to engage in the trade, business or  calling  of  plumbing  as
  employing  plumbers  in  the city in which such board shall be appointed
  with the  power  of  examining  persons  applying  for  certificates  of
  competency  as  such  employing  or  master plumbers or as inspectors of
  plumbing, to determine their fitness and qualifications  for  conducting
  the  business of master plumbers or to act as inspector of plumbing, and
  to issue certificates of competency to all such persons who  shall  have
  passed  a  satisfactory examination before such board and shall be by it
  determined to be qualified for conducting the business as  employing  or
  master plumbers or competent to act as inspectors of plumbing.
    3.  To  formulate in conjunction with the local board of health of the
  city or an officer, board or body performing the duties of  a  board  of
  health  a  code of rules regulating the work of plumbing and drainage in
  such city, including the materials, workmanship and manner of  executing
  such  work  and from time to time to add to, amend or alter the same, or
  in their discretion to adopt the standard plumbing code  recommended  by
  the state department of health.
    4. To charge and collect from each person applying for examination the
  sum  of  ten  dollars  for  each examination made by such board, and all
  moneys so collected shall be paid over  by  the  board  monthly  to  the
  chamberlain  or  treasurer  of  such  city  in which such board shall be
  appointed.