Shielding Liability: Understanding Disclaimers of Merchantability and Fitness for Purpose in EPC Contracts

In Engineering, Procurement, and Construction (EPC) contracts, disclaimers of specific warranties, like merchantability and fitness for purpose, are common strategies for managing the contractor’s liability. Let’s delve into the implications of these disclaimers.


The warranty of merchantability is an unwritten guarantee that goods are fit for their intended use and of reasonable quality. By disclaiming this warranty, the EPC contract clarifies that the contractor does not guarantee the project will meet general industry standards or unspecified expectations.


The warranty of fitness for a particular purpose assures that a product is suitable for the buyer’s specific needs. In EPC contracts, this might relate to the project’s intended functionality as discussed between the owner and contractor. A disclaimer for this warranty signifies the contractor does not guarantee the project will meet unique or undisclosed requirements.


These disclaimers shift responsibility to the owner (buyer). The owner cannot assume the project will meet unwritten expectations or unspecified needs. They must rely solely on the explicit warranties stated in the EPC contract and bear the risks associated with any deviations from those warranties.


While disclaimers offer liability protection for the contractor, it’s vital to ensure overall contract clarity. The explicit warranties should be comprehensive and detailed to effectively address potential issues. An unclear or limited warranty clause, alongside disclaimers, might leave the owner vulnerable in case of unforeseen problems.


Depending on the project’s complexity and risk allocation preferences, alternative approaches to disclaimers might be considered:

  • Limited disclaimers: Exclude specific warranties (e.g., fitness for a particular purpose) while retaining others (e.g., merchantability).
  • Express warranties: Clearly outline the scope and duration of the contractor’s warranties, providing the owner with written assurances.

The inclusion and specific wording of disclaimers of merchantability and fitness for purpose should be carefully negotiated during contract formation. Both the owner and contractor should understand the implications and ensure the clauses protect their interests fairly.


Disclaimers of merchantability and fitness for purpose in EPC contracts can be a tool for managing the contractor’s liability. However, it’s crucial to weigh the benefits against the potential limitations and consider alternative approaches during contract negotiations. Striking a balance between risk allocation and clear expectations is essential for a successful EPC project.

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