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Mandate of Lead Security Update

LMA25-028-LM | 13 October 2025

In April 2025, the LMA released two model endorsements that could be used in conjunction with binding authority agreements (LMA3113(A)/4/5 and LMA3134) to ensure policy documents issued are compliant with Lloyd’s mandate of lead security (see LMA bulletin: LMA25-008-DG). There was a subsequent update to one of the model endorsements (see LMA Bulletin: LMA25-023-DG).

The LMA has now updated all other model wordings containing the phrase ‘Certain Underwriters at Lloyd’s’ to match the requirements set out in Lloyd’s bulletin Y5438 ‘Delegated authority agreements – mandate of lead security’. Please note the language has been updated in line with language used in the endorsements published earlier in the year and is set out below:

For all jurisdictions, other than USA / Canada –

“Certain Underwriters at Lloyd’s led by [Insert Managing Agent Name], Lloyd’s Syndicate [insert Syndicate number]”

For Canada –

“Lloyd’s Underwriters led by [Insert Managing Agent Name], Lloyd’s Syndicate [insert Syndicate number]”

For USA –

“Certain Underwriters at Lloyd’s led by Lloyd’s Syndicate [insert Syndicate number]”

A list of the updated clauses can be seen in the following table:

Updated referencePrevious referenceTitle
LMA3136KLMA3136JLloyd’s Generic Certificate Jacket
NMA2911BNMA2911ALloyd’s Equine Claim Form and Release
NMA2872ANMA2872Lloyd’s Renewal Certificate
NMA2868ANMA2868Certificate SLC-3 USA
LMA9185ALMA9185Policyholder Disclosure Notice of Terrorism Insurance Coverage (TRIA)
LMA9184ALMA9184Policyholder Disclosure Notice of Terrorism Insurance Coverage (TRIA)
LMA9183ALMA9183Policyholder Disclosure Notice of Terrorism Insurance Coverage (TRIA)
LMA9156ALMA9156Policyholder Disclosure Notice of Terrorism Insurance Coverage (TRIA)
LMA3010BLMA3010ALloyd’s Personal Accident Policy (K USA)
LMA3079ALMA3079Primary Lawyers Professional Liability Insurance Wording (LAW07)
LMA3080ALMA3080Primary Lawyers Professional Liability Insurance Wording (LAW08)
LMA3102CLMA3102BSLC-3 (COR) California Certificate Notice
LMA3103CLMA3103BSLC-3 (OM) California Certificate Notice
LMA3052ALMA3052South Africa Certificate
NMA1996ANMA1996Insurance Contracts Act 1984

Further information may be found in Lloyd’s Market Bulletin Y5438 and the associated Mandate of Security FAQs.

All LMA model clauses are purely illustrative and are published and distributed for the guidance of Lloyd’s managing agents, brokers and other market participants. All contracting parties are free to agree to different conditions/amend the model clauses as they see fit; the LMA does not protect its intellectual property rights over model clauses. It is for underwriters to decide whether or not any contractual language is acceptable on any given risk.

Lloyd Martin
Executive, Technical Underwriting
lloyd.martin@lmalloyds.com

Ray Koh
Legal Counsel
ray.koh@lmalloyds.com