What is the purpose of incident numbering in 900 codes?

• A. For tracking, reference, and after-action reporting.
• B. For archiving by date only.
• C. For labeling weather conditions.
• D. For assigning unit color codes.

Answer: (A)

Incident numbering gives you a unique reference for every call, so all records tied to that event—radio dispatch, CAD entry, on-scene notes, investigations, evidence logs, and the final report—can be connected easily. That single number acts like a thread that runs through the entire lifecycle of the incident, making it quick to track what happened, where it happened, who was involved, and what actions were taken.

This is why tracking, reference, and after-action reporting are the purpose. The number lets supervisors, investigators, and analysts pull up every document related to the same incident, compare what happened across time, and build a complete after-action review. It’s not just about dates or archiving in a folder, and it isn’t related to weather labeling or unit color codes, which serve different functions. The incident number keeps everything unified and accessible when you need to review or report on the event.