MyYachtsInsurance - Yacht Insurance Community

Reviewed by Alex Short, Independent Yacht Insurance Risk Analyst

TL;DR

A certificate of insurance in a yacht hull policy confirms coverage for third parties during claims, particularly under General Average [YORK-ANTWERP-2016]. It does not limit coverage but excludes claims if the loss results from a breach of warranty or failure to maintain insurable interest under [MIA-1906]. Coverage triggers when a covered peril causes loss, but voids if the certificate is not presented to the salvor under [LLOYDS-OPEN-FORM].

Trigger Conditions

Trigger	Policy Impact	Consequence
Certificate not presented to salvor	Salvage coverage under [LLOYDS-OPEN-FORM]	Void
Breach of warranty in [IYIC-1985]	Insurable interest under [MIA-1906]	Excluded
Failure to notify refit within 30 days	Hull coverage under [IHC-2003]	Reduced
Navigation beyond declared limits	Perils of the sea under [IYIC-CLAUSE-10]	Excluded
Hot work performed without approval	Fire and explosion coverage under [ITC-H-1983]	Void
Survey overdue by more than 60 days	Validity of policy under [ICA-2015]	Excluded

Underwriter's Checklist

Survey reports: Underwriters verify the vessel’s condition and valuation to assess risk exposure, ensuring accuracy in policy limits and terms [IYIC-1985] [IHC-2003] [MIA-GUIDELINES].
Class certificates and status: Confirm the yacht is maintained to recognized standards and complies with classification society requirements, which may affect coverage under Institute Time Clauses [ITC-H-1983] [IYIC-1985].
Maintenance logs: Review for evidence of regular and proper maintenance, which is essential for coverage under the Marine Insurance Act 1906 and to avoid claims disputes [MIA-1906] [IYIC-CLAUSE-10].
Refit/modification records: Ensure any structural or mechanical changes are documented and approved, as unapproved modifications may void coverage under the Certificate of Insurance [IYIC-1985] [IHC-2003].
Crew qualifications: Verify that crew members hold valid certifications and licenses, particularly for navigation and safety, to meet regulatory and insurance requirements [MIA-GUIDELINES] [ICA-2015].
Navigation area endorsements: Confirm the policy includes the correct navigation area endorsement to ensure coverage is valid for the intended cruising grounds [IYIC-1985] [IHC-2003].
Loss history declarations: Review prior claims and loss history to assess risk profile and potential for future claims, in line with underwriting principles under the Marine Insurance Act [MIA-1906] [MIA-GUIDELINES].
Vessel logbook entries: Examine for evidence of operational compliance, including voyage records and incident reporting, which may impact claims under General Average provisions [YORK-ANTWERP-2016] [LLOYDS-OPEN-FORM].

Policy Wording Traps

Clause Type	Trap Mechanism	Scenario	Coverage Result
Contractors' Exclusion	Excludes damage caused by unapproved contractors	Owner hires an unlicensed diver to clean the hull, causing propeller damage	Claim denied under contractors' exclusion [IYIC-1985]
Latent Defect Carve-Out	Excludes claims arising from pre-existing hidden defects	Yacht develops engine failure due to undetected blockage in fuel lines from prior owner	No coverage for latent defect [IYIC-CLAUSE-10]
Faulty Workmanship Exclusion	Excludes damage from poor repair or installation	New engine installed by a non-certified mechanic fails after 6 months	Claim denied for faulty workmanship [IHC-2003]
Wear and Tear Exclusion	Excludes claims for gradual deterioration	Hull blistering occurs over 5 years due to osmotic pressure	No coverage for wear and tear [IYIC-1985]
Material Change Warranty	Invalidates coverage if yacht is modified without insurer consent	Owner installs a new radar system without notice; yacht is damaged in a storm	Policy void due to material change [MIA-1906]

Operational Reality

Yards and operators frequently fail to verify the validity of a Certificate of Insurance before commencing work, assuming it is automatically updated or transferred from previous coverage [IYIC-1985]. This can lead to underwriters denying coverage for damage occurring during dry-docking or repair if the certificate is outdated or does not explicitly cover the specific activity [IHC-2003]. Documentation must include a current Certificate of Insurance with endorsements for yard operations and any applicable deductible clauses, such as [IYIC-CLAUSE-10], submitted to the yard prior to work commencement. Surveyors are typically involved post-incident to assess damage and verify coverage, but their early involvement during the planning phase can prevent disputes [MIA-GUIDELINES]. Failure to notify the underwriter in a timely manner, particularly when a deductible applies, can delay claims processing or reduce the payout if the deductible is not met [LSW-3000]. Common mistakes include omitting the deductible clause from the certificate or failing to update the certificate when the yacht is moved to a new yard. These errors can result in the underwriter invoking the deductible or denying the claim altogether. The owner is responsible for ensuring the certificate is accurate and up to date, while the yard may be held liable if it proceeds without verifying coverage. Underwriters may also require a surveyor’s report to confirm the condition of the vessel before and after yard work to assess liability accurately.

Related Risks

Non-disclosure of prior claims in the Certificate of Insurance → May lead to invalidation of coverage under the principle of utmost good faith outlined in [ICA-2015]
Failure to maintain a valid Certificate of Insurance during a voyage → Breach of warranty under [IYIC-1985], potentially voiding the policy in case of a loss
Inadequate deductible terms specified in the Certificate → May conflict with the relevant policy clause of [IYIC-CLAUSE-10], affecting claim settlement amounts
Absence of a General Average clause in the Certificate → Limits entitlement to recover contributions under [YORK-ANTWERP-2016] in shared loss scenarios

Questions for Your Broker

Does the Certificate of Insurance explicitly state the coverage limits for hull and machinery under the Institute Yacht Clauses (1.11.85) [IYIC-1985], and are there any sub-limits for specific perils?
Is the policy subject to the deductible provisions outlined in the relevant policy clause of the Institute Yacht Clauses (1.11.85) [IYIC-CLAUSE-10], and does the Certificate of Insurance reflect the applicable deductible amount?
Are the exclusions under the International Hull Clauses (01.11.03) [IHC-2003] clearly stated in the Certificate of Insurance, particularly those related to war, terrorism, or unseaworthiness?
Does the Certificate of Insurance specify the time limits for notifying the insurer under the Marine Insurance Act 1906 (UK) [MIA-1906], and are there any additional requirements under the Insurance Act 2015 (UK) [ICA-2015]?
What documentation is required to substantiate a claim under the York-Antwerp Rules 2016 [YORK-ANTWERP-2016], and is this outlined in the Certificate of Insurance?
Does the Certificate of Insurance confirm compliance with warranties under the Institute Time Clauses Hulls (1.10.83) [ITC-H-1983], particularly regarding the seaworthiness and proper manning of the vessel?

References

York-Antwerp Rules 2016 (General Average) (framework) — https://comitemaritime.org/wp-content/uploads/2018/06/2016-York-Antwerp-Rules-with-Rule-XVII-correction.pdf
Marine Insurance Act 1906 (UK) (legal) — https://www.legislation.gov.uk/ukpga/1906/41/pdfs/ukpga_19060041_en.pdf
Lloyd's Standard Form of Salvage Agreement (LOF 2020) (framework) — https://www.lloyds.com/market-resources/salvage-arbitration-branch/lloyds-open-form-lof
Institute Yacht Clauses (1.11.85) (framework) — https://www.fortunes-de-mer.com/documents%20pdf/polices%20corps/Etrangeres/Royaume%20Uni/Institute%20Yacht%20Clauses%201.11.85.pdf
International Hull Clauses (01.11.03) (framework) — http://www.fortunes-de-mer.com/documents%20pdf/polices%20corps/Etrangeres/Royaume%20Uni/International%20Hull%20Clauses%202003.pdf
Institute Yacht Clauses (1.11.85) the relevant policy clause (Deductible) (framework) — https://www.fortunes-de-mer.com/documents%20pdf/polices%20corps/Etrangeres/Royaume%20Uni/Institute%20Yacht%20Clauses%201.11.85.pdf#clause10
Institute Time Clauses Hulls (1.10.83) (framework) — https://www.fortunes-de-mer.com/documents%20pdf/polices%20corps/Etrangeres/Royaume%20Uni/Institute%20Time%20Clauses%20Hulls%201.10.83.pdf
Insurance Act 2015 (UK) (legal) — https://www.legislation.gov.uk/ukpga/2015/4/pdfs/ukpga_20150004_en.pdf
MIA Guidelines (other) — https://www.marineinsurance.org/
LMA/IUA Named Storm Deductible Clause (LSW 3000) (framework) — https://www.lmalloyds.com/LMA/Wordings/Marine/Marine_Cargo/LMA_Marine_Cargo_Clauses.aspx

Disclosure

This content is provided for informational purposes only and does not constitute insurance advice. Coverage terms vary by policy, jurisdiction, and underwriter. Consult a licensed marine insurance broker for guidance specific to your vessel and operations.

Certificate of Insurance in Yacht Insurance: Purpose and Claims Implications