Section 605. Advisory and planning boards

The  county executive, upon
  authorization by the board  of  supervisors,  may  appoint  a  board  of
  electors  of  the county to act in an advisory capacity to himself or to
  the head of any administrative unit under his jurisdiction. The  members
  of  the  advisory  board  shall  serve without compensation but shall be
  allowed and paid actual and necessary expenses incurred by them  in  the
  performance of their duties. It shall be the duty of members of any such
  advisory  and  planning board to consult and advise upon county problems
  but not to direct the conduct or administration of county affairs.