(a) The Commissioner of Health may from time to time make such provision as he deems appropriate authorizing the performance of any of his functions under this subchapter by any other officer or employee of the Department of Health, or with the consent of the head of the department or agency concerned, by any Federal or other public or private agency, or officer or employee thereof.
(b) The Commissioner of Health is authorized to enter into arrangements with any public or private agency or any person under which appropriate facilities or services of such agency or person will be made available, on a reimbursable basis or otherwise, for the examination or treatment of individuals who elect civil commitment under this subchapter.