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⚓ '''Hull and machinery (H&M) insurance''' covers physical loss of or damage to a vessel's hull, superstructure, machinery, and equipment — making it the foundational property policy for shipowners and operators worldwide. As one of the oldest forms of [[Definition:Marine insurance | marine insurance]], H&M traces its lineage to the early days of [[Definition:Lloyd's of London | Lloyd's]] coffee-house underwriting in the seventeenth century and remains a core product within the global marine market. The coverage extends to perils of the sea such as collision, grounding, fire, and heavy weather, and can be broadened or narrowed depending on the clauses adopted. The most widely used standard wordings include the Institute Time Clauses–Hulls (ITC-Hulls) and the newer International Hull Clauses (IHC), though Nordic markets commonly use their own Plan conditions, and Asian markets may apply locally adapted terms.

🔧 A typical H&M policy is written on a time basis — usually twelve months — and values the vessel at an agreed amount negotiated between the [[Definition:Insured | insured]] and [[Definition:Underwriting | underwriters]]. This agreed value, enshrined in a [[Definition:Valued policy | valued policy]], eliminates disputes over the vessel's market worth at the time of loss. [[Definition:Premium | Premiums]] are driven by a matrix of factors: vessel type and age, trading area, classification society record, flag state, crew qualifications, and claims history. The policy's collision-liability clause (commonly referred to as the "running-down clause" or RDC) provides a limited indemnity — typically three-fourths — for the insured's legal liability arising from collision with another vessel, with the remaining quarter historically addressed through [[Definition:Protection and indemnity (P&I) insurance | protection and indemnity (P&I)]] clubs. When a vessel is damaged, the insurer covers reasonable repair costs; when a [[Definition:Total loss | total loss]] occurs — either actual or [[Definition:Constructive total loss | constructive]] — the full agreed value is payable. Large fleets and high-value vessels are almost always placed through [[Definition:Reinsurance | reinsurance]] programs or [[Definition:Coinsurance | coinsurance]] panels spanning London, Scandinavia, Asia, and other major marine hubs.

🌊 The strategic importance of H&M insurance extends well beyond individual claims payments. It underpins the financing of the global shipping fleet: banks and lessors routinely require H&M coverage as a condition of vessel mortgages, and the policy's assignment provisions allow lenders to be named as loss payees. Market cycles in H&M have been notoriously volatile, with periods of soft pricing driven by overcapacity among marine [[Definition:Underwriting | underwriters]] followed by sharp corrections after catastrophic loss events. Regulatory and environmental trends — including the [[Definition:International Maritime Organization (IMO) | IMO's]] decarbonization targets and the emergence of alternative fuels — are introducing new risk profiles that H&M underwriters must evaluate and price. Meanwhile, [[Definition:Insurtech | insurtech]] innovations such as satellite-based vessel tracking, automated [[Definition:Claims management | claims]] processing, and predictive analytics are gradually modernizing a market segment long characterized by bespoke, broker-negotiated placements.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Marine insurance]]
* [[Definition:Protection and indemnity (P&I) insurance]]
* [[Definition:Total loss]]
* [[Definition:Institute Time Clauses]]
* [[Definition:War risk insurance]]
* [[Definition:Loss of hire insurance]]
{{Div col end}}

Definition:Hull and machinery (H&M) insurance - Revision history

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