Cal. Insurance Code § 552 : California Insurance Code — General Rules Governing Insurance — Loss — Notice And Proofs Of Loss — Sufficient to give best evidence of loss in insured power at time Date: 15 Sep 2016 TEXT PDF Current through the 2016 Legislative Session When preliminary proof of loss is required by a policy, the insured is not bound to give such proof as would be necessary in a court of justice; but it is sufficient for him to give the best evidence in his power at the time. Ca. Ins. Code § 552