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🏠 '''HO policy''' is the standardized designation for a homeowners insurance policy in the United States, developed and maintained by the [[Definition:Insurance Services Office (ISO) | Insurance Services Office (ISO)]] to provide a consistent framework for insuring residential properties and the personal liability of their occupants. The "HO" prefix — followed by a numerical suffix such as [[Definition:HO-1 | HO-1]], [[Definition:HO-2 | HO-2]], [[Definition:HO-3 | HO-3]], or [[Definition:HO-5 policy | HO-5]] — identifies the specific form and the breadth of [[Definition:Coverage | coverage]] it affords. These policy forms bundle [[Definition:Property insurance | property coverage]] for the dwelling and personal belongings with [[Definition:Personal liability insurance | personal liability protection]], making them a cornerstone product of the U.S. personal lines insurance market.

⚙️ Each HO form is structured around standardized sections covering the dwelling itself (Coverage A), other structures on the premises (Coverage B), personal property (Coverage C), loss of use (Coverage D), personal liability (Coverage E), and medical payments to others (Coverage F). What distinguishes one HO form from another is primarily the [[Definition:Peril | perils]] covered and whether the policy uses a [[Definition:Named perils | named perils]] or [[Definition:Open perils | open perils]] (also called "all-risk") approach. For example, the widely sold [[Definition:HO-3 | HO-3]] form provides open perils coverage on the dwelling but named perils coverage on personal property, while the [[Definition:HO-5 policy | HO-5]] extends open perils treatment to both. Carriers typically adopt ISO's standard forms as a baseline, then layer on proprietary [[Definition:Endorsement | endorsements]], modified [[Definition:Deductible | deductibles]], and state-mandated provisions to create the final product sold to consumers. [[Definition:State insurance regulator | State insurance regulators]] review and approve these forms to ensure compliance with local requirements.

🌍 Although the HO designation system is specific to the United States, its structural logic — bundling property and liability coverage into a single residential package — finds parallels in other markets. The United Kingdom's buildings and contents insurance, Australia's home and contents policies, and similar products across Europe and Asia serve comparable functions, though they differ in regulatory framing, standard perils, and policy architecture. Within the U.S. market, the HO system's significance is hard to overstate: it provides the shared language that [[Definition:Insurance carrier | carriers]], [[Definition:Insurance agent | agents]], [[Definition:Claims adjuster | adjusters]], and [[Definition:Reinsurance | reinsurers]] use when discussing residential coverage. For [[Definition:Insurtech | insurtech]] companies entering personal lines, understanding the HO form hierarchy is essential to product design, [[Definition:Rating | rating]] engine construction, and competitive positioning, because consumer expectations and regulatory filings are built around these standardized templates.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:HO-3]]
* [[Definition:HO-5 policy]]
* [[Definition:Insurance Services Office (ISO)]]
* [[Definition:Named perils]]
* [[Definition:Open perils]]
* [[Definition:Personal liability insurance]]
{{Div col end}}

Definition:HO policy - Revision history

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