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How to draft an Extension of Time claim under FIDIC

A working structure for the fully detailed claim: eight sections, what goes in each, and the three habits that make an Engineer read it as a claim rather than a complaint.

The short notice preserves the right. The fully detailed claim is where the right is turned into days. Under FIDIC 1999 it is due 42 days from awareness; under 2017, 84 days, with its own time-bar on the contractual basis. Whichever edition, the document the Engineer receives should be built the same way.

The structure Engineers expect

SectionWhat it containsCommon failure
1. IntroductionProject, parties, the event in one paragraph, the relief soughtOpening with grievance instead of facts
2. Contractual basisThe EOT grounds relied on, cited to the sub-clause in your contract as amended, and the notice historyCiting the standard form when the Particular Conditions changed it
3. Statement of factsDated chronology, each fact tied to a recordFacts with no reference to a document
4. Cause and effectHow each event affected specific activities and why those activities drove completionAsserting delay without linking it to the critical path
5. Time impactThe days claimed, with the analysis method named and the programme referencesA global number with no method
6. CostEither a reservation of the right to claim cost, or the prolongation cost section with heads and line itemsMixing time and money arguments
7. ConclusionThe extension requested, stated plainlyRestating the whole claim
8. AnnexuresNumbered records matching every citation in the textAnnexures the narrative never refers to

Section 2: cite the contract you have

The contractual basis section decides whether the Engineer has to engage with the rest. Cite the EOT ground under Sub-Clause 8.4 or its amended equivalent, the notice under Sub-Clause 20.1 or 20.2 with the date it was given, and any other sub-clause the event engages, such as late drawings or site access. Quote the wording from your contract as amended, not from a FIDIC textbook, because the Particular Conditions may have changed it and the Engineer will check.

Sections 3 and 4: chronology, then causation

Keep the statement of facts strictly chronological and strictly referenced. Every date gets a record: the RFI, the transmittal, the diary page, the photograph, the meeting minute. Then, in a separate section, explain causation: which activities the event held, why those activities were on the driving path to completion, and how long the hold lasted. Separating facts from argument makes the document easier to check and harder to dismiss.

Every date in the claim should have a document behind it that existed on that date.The rule that separates a claim from a complaint

Section 5: name the method

State which delay analysis method you used and why it fits the timing of the claim. The SCL Protocol describes the recognised methods; a prospective claim during the works will usually lean on a time impact analysis against the contemporaneous programme update, while a retrospective claim after the event may use a windows or as-planned versus as-built approach. This is expert territory: name the method, present the programme references, and let your delay analyst defend the choice.

Three habits that change how it is read

Checklist before submission

  • Every clause citation matches the contract as amended, not the standard form.
  • Every date has an annexure reference; every annexure is referenced in the text.
  • The notice history is stated honestly, including any late notices.
  • The delay analysis method is named and consistent with when the claim is being made.
  • The document carries a draft-for-review banner until the expert signs it off.

The DraftMyEOT claim wizard assembles all eight sections from your register and evidence locker, cites every record inline, and flags gaps instead of filling them.

Start a 48-hour draft →

This article is general information about how these contract mechanisms typically work. It is not legal advice, and it is not a substitute for review of your specific contract by a qualified professional.