Admission of a veteran to a treatment unit as designated pursuant to N.J.S.38A:23-7 shall require:
a. a determination by the appropriate department that such veteran is mentally ill in accordance with the appropriate provisions of Title 30 of the Revised Statutes; and
b. a determination by the Commissioner of the Department of Veterans Affairs that such veteran is eligible for admission to a veterans' facility.
A veteran may be admitted to such treatment unit upon voluntary application, commitment, or transfer.