ISO Forms, Rules, and Loss Costs

Licensed insurers can download current ISO loss costs by licensed line and jurisdiction; Verisk documents that those prospective values project future claim costs and allocated/unallocated LAE and are developed for coverage, state, territory, class, limit, deductible, and other dimensions. CLCD also supplies the immediately prior value and percentage change. This is Primary evidence; retain the downloaded line/jurisdiction selection, current/prior status, selected dimensions, file, and retrieval date.

Verisk documents that ISO rating rules use its data, loss costs, and coverage forms to support classification and pricing, and its loss-cost methodology identifies state, territory, class, coverage, limit, and deductible as pricing dimensions. This is Strong current advisory rule and dimension evidence for licensed lines; preserve line, jurisdiction, selected rule/content, and retrieval date, and do not infer an undocumented universal code scheme or edition field.

Verisk documents aggregated insurer premium/loss experience, quality controls, loss development to ultimate, allocated and unallocated LAE, frequency and severity trends, external-factor adjustments, and thousands of line-specific actuarial reviews used to produce future loss costs. This is Useful general methodological support for ISO advisory values, but not revision-specific statistical exhibits or complete experience/evaluation-period, issuance, version, and proposed-effective-date pins.

CLCD directly supplies current and immediately prior ISO loss costs plus their percentage change by licensed line and jurisdiction, and the product issues pricing circulars. This is Useful evidence only for the loss-cost-change slice of the revision question; it does not establish classification/factor/rule differences, a prior edition identifier, supersession, or effective date, which must not be inferred.