Public service agencies are moving more toward requiring volunteers to successfully complete FEMA ICS courses as a prerequisite for participating in drills and emergency events. ICS or Incident Command System is a government mandated system of command which allows agencies across the country to operate in a universal, orderly hierarchy providing for improved interoperability and a smoother flow of command between agencies, volunteers, the public and other stakeholders. It's important that volunteers involved with public service agencies during a drill or disaster gain at least a basic knowledge and understanding of the ICS structure and function. Most FEMA courses are conducted online and are free of charge. Baseline required course are ICS-100 and IS-700. Upon successful completion of these two courses, the student may go on to take as many course as desired. Prior to taking any FEMA course, the student must apply for a Student ID. The student will be required to provide that ID number each time a course is taken.