(2) The cost and expense of providing such assistance and all expenses incurred in effecting the transportation of such patients shall be paid from funds appropriated for that purpose upon vouchers approved by the department, the authority or the superintendent of the Oregon State Hospital. [1957 c.388 §10; 1985 c.511 §2; 2009 c.595 §453; 2013 c.36 §21; 2015 c.318 §19]