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Free tools

FIDIC claim deadline calculator

Enter the date you became aware of the event and see every claim deadline under your contract form, with the days left. Add the dates to your calendar, or get an email reminder 7 days before each one.

Contract form

Or the date you should have become aware of it.

28 days after awareness

Notice of claim

Sub-Clause 20.1. Late notice can lose the claim.

Use the template: Notice of claim
42 days after awareness

Fully detailed claim

Sub-Clause 20.1, or another period the Engineer approves.

Use the template: Fully detailed extension of time and prolongation claim
84 days after awareness

Engineer’s response

Within 42 days after it receives your fully detailed claim (shown here if you send it on the last day).

Use the template: Engineer’s response to notice and request for particulars

Days are calendar days from the date of awareness. Your Particular Conditions may change any of these periods, so check them first. This is a planning aid, not legal advice.