Section 322. Local health officer; term of office; removal

1. The term of
  office of the health officer of a municipality shall be four  years  and
  he shall hold office until his successor is appointed and qualifies.
    2. (a) The health officer may be removed from office for just cause by
  the  local  board  of health or by the commissioner after a hearing upon
  notice. Removal of the health officer by the local board of health shall
  be subject to the approval of the commissioner.
    (b) Where a health officer has been appointed jointly, by two or  more
  local  boards  of health, the power of a local board of health to remove
  the health officer shall in such case be exercised jointly by the  local
  boards participating in the appointment.