Blast furnace clause

A liability insurance restrictive endorsement excluding work on blast furnaces. The clause is equally a gasometer clause, or a towers clause, given the other buildings (hangars, steeples, bridges, viaducts and roofs other than private dwellings and/or shops of not more than three floors) also named. They all call for close scrutiny from the underwriter because of their height or other physical characteristics.

Blended covers/integrated covers

The combining of conventional insurance with financial losses in a single programme, as in multi-line insurance. Risks can be priced on a portfolio basis – and therefore cover may be available for risks that, in isolation, would be too costly to insure. The financial losses are based on falls in a specified index and not the actual portfolio.

Blended rates

Group mortality rates based partially on a group’s experience and partially on manual rates. These rates are used to establish the right group insurance premium rates for intermediate-size groups.

Blended reinsurance

Reinsurance that integrates in a single contract traditional risk transfer and financial reinsurance or finite risk reinsurance coverage components. An example would be a contract that combines catastrophe coverage on a per occurrence basis with casualty coverage having an aggregate limit and aggregate retention.

Blind Treaty

REINSURANCE: A Reinsurance treaty where Insurers are not given details of individual risks ceded to them.
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Refer: “Reinsurance, Blind Treaty.”
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UK: Reinsurance treaty under which the cedant, instead of notifying individual risks routinely, supplies periodical summaries of premiums and claims. The reinsurer rarely exercises his right to examine the cedant’s books in relation to any risk or claim.