(a) Upon a finding by the Department that there has been a substantial failure to comply with this Act or the rules and regulations promulgated by the Department under this Act, including, without limitation, the circumstances set forth in subsection (a) of Section 3-119 of this Act, or if the Department otherwise finds that it would be in the public interest or the interest of the health, safety, and welfare of facility residents, the Department may impose a ban on new admissions to any facility licensed under this Act. The ban shall continue until such time as the Department determines that the circumstances giving rise to the ban no longer exist.
     (b) The Department shall provide notice to the facility and licensee of any ban imposed pursuant to subsection (a) of this Section. The notice shall provide a clear and concise statement of the circumstances on which the ban on new admissions is based and notice of the opportunity for a hearing. If the Department finds that the public interest or the health, safety, or welfare of facility residents imperatively requires immediate action and if the Department incorporates a finding to that effect in its notice, then the ban on new admissions may be ordered pending any hearing requested by the facility. Those proceedings shall be promptly instituted and determined. The Department shall promulgate rules defining the circumstances under which a ban on new admissions may be imposed.