Section 406. Department of social welfare designated as state agency

The
  department is hereby designated as the agency of the state to administer
  and expend any and all grants of moneys allocated or made  available  to
  the  state  under  the provisions of the federal social security act for
  child welfare services as defined in such act, subject to the provisions
  of such act and rules and regulations established thereunder and to  the
  laws  of  the  state  and rules and regulations established by the state
  comptroller.