; (iv) potential or unaddressed hazards and risks related to job design, equipment, or facilities with regard to workplace violence; (v) potential or unaddressed hazards and risks related to environmental and patient-specific risk factors with regard to workplace violence; and (vi) the availability of sufficient staff or security personnel to implement the Workplace Violence Prevention Plan. (C) A requirement that each covered health care employer establish procedures for how employee concerns will be investigated, and how employees will be informed of the results of the investigation and any correct actions to be taken. (D) A requirement that each covered health care employer establish communication procedures regarding the Workplace Violence Prevention Plan, including how employees can document and communicate information regarding conditions that may increase the potential for workplace violence incidents to other employees and between shifts and units. (4) Workplace violence hazard correction (A) A requirement that each covered health care employer shall correct workplace violence hazards in a timely manner. Each covered health care employer shall be required to use engineering controls and work practice controls to eliminate or minimize employee exposure to the identified hazards. Corrective measures taken under this paragraph shall include, at minimum, each of the following as appropriate: (i) Assigning or placing sufficient numbers of staff to reduce patient-specific Type 2 workplace violence hazards. (ii) Maintenance of sufficient numbers of trained staff, including security personnel, who are available to prevent and immediately respond to workplace violence incidents during each shift. A staff person is not considered to be available if other assignments prevent him or her from immediately responding to an alarm or other notification of a violent incident. (iii) Reconfiguration of facility spaces so that— (I) employee access to doors and alarm systems cannot be impeded