(a) A person committed to a facility under this subchapter shall be committed to a facility designated by the commission.
(b) A person committed under this subchapter shall be transferred to the designated facility immediately on the entry of the order of commitment.

(c) Unless a person committed to a maximum security unit by the commission is determined to be manifestly dangerous by a review board under this article, not later than the 60th day following the date of the person’s arrival at the maximum security unit the person shall be transferred to a non-maximum security unit of a facility designated by the commission.
(d) The executive commissioner shall appoint a review board of five members, including one psychiatrist licensed to practice medicine in this state and two persons who work directly with persons with mental illnesses or persons with intellectual disabilities, to determine whether the person is manifestly dangerous and, as a result of the danger the person presents, requires continued placement in a maximum security unit.
(e) If the head of the facility at which the maximum security unit is located disagrees with the determination, then the matter shall be referred to the executive commissioner. The executive commissioner shall decide whether the person is manifestly dangerous.