If fuel, battery backup power or batteries are required, make sure the system can run for the required time and chargers are available. Document how to operate these systems and mark the locations of controls. Make sure the information is available during an emergency. Many of these systems also require periodic inspection, testing and maintenance in accordance with national codes and standards. Train staff so a knowledgeable person is able to operate systems and equipment. Materials and Supplies. Be sure to compile a list of available resources using the Emergency Response Resource Requirements and Business Continuity Resource Requirements worksheets as a guide. External Resources. Preparing for an emergency, responding to an emergency, executing business recovery strategies and other activities require resources that come from outside the business. If there were a fire in the building, you would call the fire department. Contractors and vendors may be needed to prepare a facility for a forecast storm or to help repair and restore a building, systems or equipment following an incident. The following external resources should be identified within plan documents. Include contact information to reach them during an emergency and any additional instructions within the preparedness plan. Public Emergency Services. Contractors and Vendors. Partnerships.