The head of each state department, agency or commission shall select from within such agency a person to be designated as the emergency coordination officer for the agency and an alternate. The emergency coordination officer is responsible for coordinating with the Mississippi Emergency Management Agency on emergency preparedness issues, preparing and maintaining emergency preparedness and postdisaster response and recovery plans for such agency, maintaining rosters of personnel to assist in disaster operations and coordinating appropriate training for agency personnel. These individuals shall be responsible for ensuring that each state facility, such as a prison, office building or university, has a disaster preparedness plan that is approved by the applicable local emergency management agency or the division. The head of each agency shall notify the Governor and the Mississippi Emergency Management Agency in writing of the person initially designated as the emergency coordination officer for such agency and his alternate and of any changes in persons so designated thereafter.