Jurisdiction(s):
United Kingdom

Related legal acts

Key definition

JCT definition

What does JCT mean? JCT refers, in practice, to the Joint Contracts Tribunal and its suite of standard-form construction contracts used to procure building works and services. It is an industry shorthand rather than a term defined in legislation or case law. The JCT suite (including Design and Build, Standard Building Contract, Intermediate, Minor Works, term and framework contracts, sub-contracts and collateral warranties) provides a structured allocation of risk and clear provisions on design responsibility, payment and retention, variations, extensions of time, liquidated damages, loss and expense, insurance, termination and dispute resolution (including adjudication under the UK “Construction Act”). Usage varies by jurisdiction: - England and Wales:...

JCT collateral warranties: standard forms, when to use them, and key clauses and risk issues (including 2024 updates)

Published by a LexisNexis Construction expert

Practice notes

A Collateral Warranty is an agreement that is ancillary to, or runs alongside, the underlying or primary contract (ie the construction contract or a consultant’s appointment). Most collateral warranties pick up the duties and obligations set out in the underlying contract, and the warrantor promises to a third party that it has carried out those duties and obligations in accordance with that contract. For further general information on collateral warranties, see Practice Note: What are collateral warranties?

The JCT suite of collateral warranties

The JCT has issued a number of standard form collateral warranties, with the following being the most commonly used:

JCT Contractor Collateral Warranty for a Funder (CWa/F)
JCT Contractor Collateral Warranty for a Purchaser or Tenant (CWa/P&T)
JCT Sub-Contractor Collateral Warranty for the Employer (SCWa/E)
JCT Sub-Contractor Collateral Warranty for a Funder (SCWa/F)
JCT Sub-Contractor Collateral Warranty for a Purchaser or Tenant (SCWa/P&T)

For a summary of the differences between the 2016 and 2024 versions, see News Analysis: JCT 2024 Contractor and Sub-Contractor Collateral Warranties released...

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Web page updated on 21/05/2026

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