UNIT 1: DISASTER PREPAREDNESS In this unit you will learn about: Roles and Responsibilities for Community Preparedness: How everyone in a community has a role in disaster preparedness and response. Elements of Disasters and Their Impact on the Infrastructure: The potential effect of extreme emergencies and disasters on transportation; electrical service; telephone communication; availability of food, water, shelter and fuel; and emergency services. Personal and Organizational Preparedness: How you can prepare in advance to improve the quality of your survival and to reduce the damage from hazards. Role of CERTs: CERT organization, disaster and non-disaster roles, and laws that protect disaster workers from liability.