A nursing home shall post a notice on each floor or unit of the nursing home, for each shift, a notice that gives the ratio of licensed and unlicensed staff to residents. The posting on each floor shall include: Names of the staff members on duty and the room numbers of the residents to whom each is assigned; Name of the charge nurse or person who is in charge of the unit; If the person in charge is not a registered nurse, the name of the registered nurse responsible for the unit; and Name of the medicine aide or person responsible for medication administration. The posting shall be on a form provided or approved by the Department. A record of the posting shall be retained for 1 year.