Section 20. Divisions or bureaus

Existing  divisions or bureaus in the
  department shall  continue  until  changed,  consolidated  or  abolished
  pursuant  to this section. The commissioner may establish such divisions
  or bureaus as may be necessary for the administration and  operation  of
  the  department,  under  this  chapter,  and  may change, consolidate or
  abolish divisions or bureaus.  Each division and bureau shall be subject
  to the supervision and direction of the  commissioner,  and  shall  have
  jurisdiction  of  such  matters,  exercise  such powers and perform such
  duties as may be assigned to it by the commissioner.