A Subrogation Letter should clearly state the facts of the case, including details of the incident (e.g. Subrogation is an arrangement between insurance companies to prevent insured parties from receiving double compensation.The subrogation process is the right of an insurance company to recover the amount it has paid on a claim from the at-fault party. IMPORTANT: If the certificate holder is an ADDITIONAL INSURED, the policy(ies) must have ADDITIONAL INSURED provisions or be endorsed. Thank you for using our online questionnaire. If the insurance company pursues subrogation, they must include your deductible unless you have already recovered your deductible. This form is required pursuant to Local Rule 2.3 in all new civil case filings in the Los Angeles Superior Court. Subrogation is a critical concept in insurance claims, particularly when it comes to personal injury settlements in California. Most liability insurance contracts contain one or more clauses specifically addressing subrogation. Los Angeles, CA 900746527.