The powers and duties of the Municipal Civil Defense and Emergency Management Committee shall include the recommendation for adoption by the City Council of a civil defense and emergency management plan for the city, and the recommendation for adoption by the City Council of any and all mutual aid plans and agreements which are deemed essential for the implementation of such emergency management plan. The duties of such Civil Defense and Emergency Management Committee shall also include making an inventory of the availability of existing personnel, equipment, supplies and services which could be used during an emergency as well as a continuing study of the need for amendments and improvements to the emergency management plan adopted by the City Council. The Civil Defense and Emergency Management Committee shall meet upon the call of either the chairman or request, in writing, of two members of the committee.