One of the key concepts of the Incident Command System is development and implementation of an Incident Action Plan for response activities. The incident Action Plan documents the who, what, when, where, why, and how of the incident response that allows for ease of use and assessment.
The Incident Action Plan uses standardized forms to document information, as a private organization you are not required to use forms from a certain group or agency (ie. HICS or FEMA ICS forms). You may choose what style of forms work for you.