; (II) employees can maintain line of sight and other immediate means of communication in all areas where patients or members of the public may be present; and (III) furnishings and other objects cannot be used as improvised weapons. (iv) Procedures to prevent the transport of unauthorized firearms and other weapons into the facility. (v) Procedures by which employees can summon security and other aid and be alerted to the presence, location, and nature of a security threat. (vi) Establishment of an effective response plan for actual or potential workplace violence emergencies that shall include, at minimum— (I) procedures for warning employees of the situation; (II) procedures for obtaining help from security or law enforcement agencies as appropriate