This class covers the initial on-scene size-up for the first-arriving officers at all incidents that they respond to. It sets up the framework for the entire fireground experience from assessing the incident scene arrival information and setting up an IMs organization. Students will use a systematic mental checklist using the CASH acronym, (Command, Actions, Size-Up, and Help) for on-scene size-up reports, which can be used at all incidents. Topics include the establishment of command, the 13-point size-up factors, first-due company assignments, and additional resources that will be needed. A plus for promotional exams.