Fire cause-and-origin reports for insurance claims

When a fire loss comes in, the cause-and-origin report is the document the whole claim turns on. It supports the coverage decision, it is the foundation of any subrogation recovery, and it is the first thing scrutinized if the file heads toward litigation or a fraud referral. This guide covers what a strong C&O report does for a claim and how to make it defensible.

What the report decides for the claim

The cause-and-origin report establishes where the fire started and, where the evidence supports it, what caused it. Those findings drive three separate questions: whether the loss is covered, whether a third party can be pursued in subrogation, and whether the fire shows signs of being intentionally set.

Supporting a subrogation recovery

If a fire started at a failed appliance, a bad electrical connection, or a contractor's work, the carrier may recover its payout from the responsible party. Subrogation succeeds on documentation: the origin clearly established, the artifact identified and preserved, photographs that tell the story, and a report that a manufacturer's experts cannot easily pick apart. A thorough C&O report is where that case begins.

SIU and suspected fraud

On a file with fraud indicators, the report matters even more. It documents the scene objectively and records the investigator's determination of classification. The key discipline is separation: the report states what was observed and what the investigator concluded, and it does not stretch to a conclusion the evidence will not carry.

What makes it defensible

• A documented NFPA 921 methodology, so the process is transparent.
• Complete, captioned photographs of the exterior, interior, and origin area.
• Witness and occupant statements attributed to the people who made them.
• A clear line between factual observation and the investigator's opinion.
• Determinations stated to a reasonable degree of certainty, or marked undetermined.

The investigator owns the determination

Car56 documents observations and states the determinations the investigator provides. Under NFPA 1033, the origin, the cause, and the classification are the certified investigator's responsibility. The software never assigns a cause and never labels a fire incendiary. That protects the credibility of the report and the investigator who signs it.

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