Agent’s authority

The authority of an insurance agent to act on behalf of the insurer he or she represents. There are several types including express authority (authority to act on specific instructions only), implied authority (actions taken in accordance with prevailing custom), or apparent authority (actions based on appearances created by the agent and acquiesced to by the principal).

Aggravation

In workers’ compensation, change in a preexisting condition that causes a temporary or permanent increase in disability or creates a need for additional or different medical treatment. An aggravation may be caused by either a new injury or by work activity involving a physical, chemical, or biological factor.

Aggregate

in a reinsurance policy, the aggregate amount that the insurer must retain before anything is paid by the reinsurer; for example £200,000 XS £100,000 with an aggregate retention of £500,000 means that a £150,000 loss would erode £50,000 of the aggregate; once the aggregate has gone, the reinsurance policy begins paying out, subject to the excess.

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Total (limit of indemnity, premium, retention etc).

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The greatest amount recoverable on account of a single loss or during a policy period, or on a single project.