(a) This section applies and a cremation authorization form is not required under this chapter if:
(1) the deceased person has left written directions for the disposition by cremation of the deceased person’s human remains as provided by § 711.002(g); and
(2) the authorizing agent refuses for any reason to sign a cremation authorization form.
(b) The crematory establishment may cremate the deceased person’s human remains without receipt of a cremation authorization form signed by the authorizing agent if:
(1) cremation costs are paid; and
(2) the authorizing agent provides positive written identification that the human remains to be cremated are the human remains of the deceased person.