# What sort of evidence needs to be provided for a contractor in order to prove events related to a claim?

**URL:** <https://reachback.builtintelligence.com/t/what-sort-of-evidence-needs-to-be-provided-for-a-contractor-in-order-to-prove-events-related-to-a-claim/1613>\
**Category:** Contractor Claims\
**Created:** [18 January 2013 12:34 UTC](https://reachback.builtintelligence.com/t/what-sort-of-evidence-needs-to-be-provided-for-a-contractor-in-order-to-prove-events-related-to-a-claim/1613 "2013-01-18T12:34:24Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Legal\_Expert](https://avatars.discourse-cdn.com/v4/letter/l/7cd45c/32.png) [@Legal\_Expert](https://reachback.builtintelligence.com/u/Legal_Expert)\
**Post date:** [18 January 2013 12:34 UTC](https://reachback.builtintelligence.com/t/what-sort-of-evidence-needs-to-be-provided-for-a-contractor-in-order-to-prove-events-related-to-a-claim/1613/1 "2013-01-18T12:34:24Z")

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**Author:** ![Legal\_Expert](https://avatars.discourse-cdn.com/v4/letter/l/7cd45c/32.png) [@Legal\_Expert](https://reachback.builtintelligence.com/u/Legal_Expert)\
**Post date:** [18 January 2013 12:34 UTC](https://reachback.builtintelligence.com/t/what-sort-of-evidence-needs-to-be-provided-for-a-contractor-in-order-to-prove-events-related-to-a-claim/1613/2 "2013-01-18T12:34:35Z")

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It is necessary to locate letters, faxes, drawings, and the like, and set out how and why these give rise to the claim.

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**Author:** ![Ashley\_Esq](https://avatars.discourse-cdn.com/v4/letter/a/eb8c5e/32.png) [@Ashley\_Esq](https://reachback.builtintelligence.com/u/Ashley_Esq)\
**Post date:** [4 March 2022 17:26 UTC](https://reachback.builtintelligence.com/t/what-sort-of-evidence-needs-to-be-provided-for-a-contractor-in-order-to-prove-events-related-to-a-claim/1613/3 "2022-03-04T17:26:42Z")

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- Programmes
- Timelines
- Subcontractor Substantiation
- Early Warnings
- Compensation Events / Variations
- Progress Records
- Timesheets / Invoices