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	<title>Definition:Mandatory purchase requirement - Revision history</title>
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	<updated>2026-04-29T21:55:52Z</updated>
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&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;📜 &amp;#039;&amp;#039;&amp;#039;Mandatory purchase requirement&amp;#039;&amp;#039;&amp;#039; is a regulatory or statutory obligation that compels individuals, businesses, or specific categories of property owners to obtain [[Definition:Insurance | insurance]] coverage as a condition of engaging in certain activities, owning certain assets, or operating within a particular jurisdiction. In insurance markets worldwide, mandatory purchase requirements exist to ensure that risks with significant social or financial externalities — such as automobile liability, workers&amp;#039; compensation, or flood exposure in high-risk zones — are covered, rather than left to individual discretion where adverse selection and underinsurance would otherwise prevail.&lt;br /&gt;
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⚙️ The mechanics of mandatory purchase requirements vary widely across jurisdictions and lines of business. In the United States, the National Flood Insurance Program (NFIP) imposes a mandatory purchase requirement on federally backed mortgage holders whose properties lie within designated Special Flood Hazard Areas, ensuring that [[Definition:Flood insurance | flood insurance]] is in place as a condition of the loan. Automobile [[Definition:Third-party liability insurance | third-party liability insurance]] is compulsory in virtually every developed market — from the European Union&amp;#039;s Motor Insurance Directive framework to Japan&amp;#039;s compulsory automobile liability insurance (jibaiseki) and China&amp;#039;s mandatory traffic accident liability insurance. [[Definition:Workers&amp;#039; compensation insurance | Workers&amp;#039; compensation]] mandates operate in most U.S. states, across Australia, and under various social insurance schemes in Europe. Professional [[Definition:Indemnity insurance | indemnity insurance]] requirements attach to regulated professions — solicitors in England and Wales, medical practitioners in Germany, or insurance [[Definition:Broker | brokers]] in Singapore — reflecting the principle that those whose errors can cause significant third-party harm should carry financial protection.&lt;br /&gt;
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⚖️ These requirements shape insurance markets in profound ways. By creating a guaranteed pool of demand, mandatory purchase rules support market stability and enable insurers to spread risk across broad populations, which in turn improves the actuarial predictability of [[Definition:Loss ratio | loss ratios]]. However, compulsory insurance also raises questions of affordability and access — particularly when the mandated coverage is expensive relative to the purchasing power of those required to buy it, as has been a persistent tension in U.S. flood insurance and in some emerging-market motor insurance programs. Governments sometimes respond by establishing [[Definition:Residual market mechanism | residual market mechanisms]], [[Definition:Assigned risk pool | assigned risk pools]], or state-backed facilities to serve policyholders who cannot obtain coverage in the voluntary market. For insurers and [[Definition:Insurtech | insurtech]] companies, mandatory lines represent stable but often price-regulated revenue streams, and the regulatory frameworks surrounding them — including minimum coverage limits, standardized policy forms, and filing requirements — significantly constrain product design and competitive differentiation.&lt;br /&gt;
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&amp;#039;&amp;#039;&amp;#039;Related concepts:&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
{{Div col|colwidth=20em}}&lt;br /&gt;
* [[Definition:Compulsory insurance]]&lt;br /&gt;
* [[Definition:Flood insurance]]&lt;br /&gt;
* [[Definition:Third-party liability insurance]]&lt;br /&gt;
* [[Definition:Workers&amp;#039; compensation insurance]]&lt;br /&gt;
* [[Definition:Residual market mechanism]]&lt;br /&gt;
* [[Definition:Assigned risk pool]]&lt;br /&gt;
{{Div col end}}&lt;/div&gt;</summary>
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