By October 1, 1989, the Department of Public Health shall adopt regulations, in accordance with the provisions of chapter 54, to set minimum standards for hospital discharge planning services. Such standards shall include, but not necessarily be limited to, requirements for (1) a written discharge plan prepared in consultation with the patient, or his family or representative, and the patient’s physician and (2) a procedure for advance notice to the patient of his discharge and provision of a copy of the discharge plan to the patient prior to discharge.