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📜 '''Open perils''' is the plural term used to describe the class of risks covered under an [[Definition:Open peril | open peril]] (or "all-risk") [[Definition:Insurance policy | insurance policy]], where every cause of loss is covered unless it is specifically excluded by the policy language. In everyday industry usage, professionals often refer to a policy as providing "open perils coverage" or being written on an "open perils basis," signaling that the form does not limit protection to an enumerated list of hazards. The term appears most frequently in [[Definition:Property insurance | property insurance]] discussions, though the underlying concept — covering what is not excluded rather than only what is named — can also appear in certain [[Definition:Inland marine insurance | inland marine]] and [[Definition:Commercial package policy (CPP) | commercial package]] forms.

⚙️ Functionally, a policy written on an open perils basis shifts a critical element of the [[Definition:Insurance claim | claims]] process: the [[Definition:Insurance carrier | insurer]] bears the obligation to demonstrate that a loss falls within a stated [[Definition:Exclusion | exclusion]] before it can decline payment. This contrasts sharply with [[Definition:Named peril | named perils]] forms, where the [[Definition:Insured | policyholder]] must prove the cause of loss is among those specifically listed. Because the scope of coverage is inherently wider, [[Definition:Underwriter | underwriters]] rely heavily on well-drafted exclusions, [[Definition:Sublimit | sublimits]], and [[Definition:Deductible | deductibles]] to control their aggregate exposure. Common exclusions — such as those for gradual deterioration, governmental action, or [[Definition:Pollution liability | pollution]] — serve as the practical boundaries that define what "open" truly means in a given contract.

🛡️ Selecting an open perils form is a strategic decision that reflects both risk tolerance and budget. Businesses with complex or evolving exposures — manufacturing operations, technology firms, large real estate portfolios — often prefer open perils coverage because it guards against the unforeseen causes of loss that a named perils list might miss. [[Definition:Insurance broker | Brokers]] and [[Definition:Risk manager | risk managers]] evaluate whether the incremental [[Definition:Premium | premium]] cost is justified by the gap analysis between named and open perils forms. In a hardening [[Definition:Insurance market cycle | market]], carriers may restrict open perils availability or add manuscript exclusions to tighten terms, making the negotiation of open perils language a key focal point during [[Definition:Policy renewal | renewal]] discussions.

'''Related concepts'''
{{Div col|colwidth=20em}}
* [[Definition:Open peril]]
* [[Definition:Named peril]]
* [[Definition:Exclusion]]
* [[Definition:All-risk insurance]]
* [[Definition:Property insurance]]
* [[Definition:Deductible]]
{{Div col end}}

Definition:Open perils - Revision history

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