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Notice deadlines, entitlement tests, and required records vary by contract, jurisdiction, amendments, procurement rules, and governing law. The examples below are administrative guidance, not a universal deadline or legal opinion. Start with the executed contract and its incorporated documents.
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1. Check the contract before building your claim
Contract administration comes first because a well-documented event can still be barred by a missed notice condition. Pull the executed agreement, amendments, incorporated specifications, general and special conditions, procurement rules, and claim instructions into one working file.
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Map every notice requirement
Make a checklist for each potential delay or extra-cost event. Record:
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- the event that starts the notice clock;
- the person or entity who must receive notice, such as the contract administrator, engineer, owner’s representative, or agency official;
- the permitted form, including a letter, project-management-system entry, prescribed form, or other method;
- the delivery method and address or system used;
- the deadline for an initial notice of potential claim;
- the facts and information the notice must contain;
- requirements for continuing updates, weekly records, or revised particulars; and
- the deadline and format for the fully quantified claim.
Check whether the clause distinguishes an extension-of-time request from an additional-cost claim. They may have different triggers, deadlines, proof requirements, or decision-makers.
Send a protective notice when the contract requires one
When an event may affect time or cost, issue the contractually required notice even if the full consequences are not yet known. State that the notice is an early notification of a potential delay, disruption, or extra cost and reserve the right to update the amount and duration as records develop. Do not wait for a final cost calculation if the contract requires earlier notice.
Describe the event factually: identify the date and time, location, work or material affected, relevant direction or condition, people involved, and the immediate effect. Cite the contract clause or specification that you believe applies, but avoid presenting entitlement as established before the facts are complete.
Prove delivery and preserve the response
Keep the sent letter or electronic submission, transmission receipt, delivery confirmation, system reference number, attachments, and any acknowledgement or response. Save the original files in a controlled folder rather than relying on a mailbox or project portal that may later change. Note who received the notice and when.
Continue updating the notice
For an ongoing event, maintain the update frequency required by the contract. Each update should identify new facts, affected activities, current and forecast duration, costs incurred to date, mitigation taken, and information still being developed. A final claim should cross-reference the earlier notices instead of assuming the recipient can reconstruct the history.
Jurisdiction-specific examples are not universal rules
Published government materials illustrate why the contract and jurisdiction must be checked:
| Source and setting | Example requirement | How to use it |
|---|---|---|
| Fisheries and Oceans Canada general terms | For the specified owner-neglect or delay circumstances, written notice of intent is due within ten working days from when the neglect or delay first occurred; the written claim deadline is tied to final completion certification. The page’s date/version was not stated. | Use only if those terms govern the project. It is not a general Canadian or construction-industry deadline. |
| Construction Industry Authority of the Philippines FAQ material | A 15-day period is described for certain extra-cost claims after an extra-cost instruction or recognition of owner-caused delay, and for specified time requests. The page’s date/version was not stated. | Verify the current rule, contract form, and triggering event before relying on it. |
| North Carolina Department of Transportation manual material | The procedure illustrates written notice content and separate weekly records for each noticed occurrence. | Treat it as an agency procedure, not a universal requirement. |
2. Build a dated, factual chronology
A chronology lets a reviewer test what happened without relying on memory or conclusions. Start it as soon as an issue appears and update it daily or whenever a material event occurs.
Use a consistent event entry
For each entry, record:
- date and time, including the time zone or shift where relevant;
- precise location, drawing area, work package, or activity;
- the observed condition, instruction, delivery, refusal, or decision;
- names and roles of people present or communicating;
- the words of an instruction or response when important;
- resources affected, such as crews, equipment, access, materials, or work fronts;
- the immediate result and any follow-on effect observed that day;
- related notice, RFI, change-order, meeting-minute, photograph, or report numbers; and
- the person who made the entry and when it was made.
Write “excavation could not proceed in grid B-4 because the specified access route was occupied by stored owner-furnished materials” rather than “owner caused a major delay.” The first statement can be checked against photographs, delivery records, and daily reports; the second is a conclusion that still needs proof.
Use contemporaneous project records
Collect daily reports, site diaries, weather and access records where relevant, labor and equipment allocation sheets, delivery tickets, inspection records, RFIs, instructions, change orders, meeting minutes, correspondence, and notices. Keep the original record and an indexed copy. Do not silently rewrite a completed daily report; if a correction is needed, identify the correction, date it, and preserve the original.
Photograph conditions with context
Caltrans guidance states: “Photographs and videos are valuable in confirming job conditions at a particular point in time.” A useful image has a date and time, location, orientation or reference point, and a short factual caption. Preserve the original file and metadata where available. Take overview and close-up images so a reviewer can identify both the condition and its relationship to the work.
Caltrans also advises that daily reports use specific statements, that important directions and decisions be written down, and that accurate records be kept when a dispute arises. Those practices make the chronology more reliable than a retrospective narrative prepared after completion.
3. Connect the event to the schedule
Showing that an event occurred is not the same as proving that it delayed completion. The schedule analysis must identify the affected activity or milestone and explain the path from the event to a later contractual date.
Preserve the accepted baseline
Keep the accepted baseline schedule exactly as approved, together with every dated update, look-ahead, schedule narrative, revision log, and change record. Do not overwrite the baseline with a later forecast. Identify the contractual completion date and any interim milestones that carry separate consequences.
Identify the affected activity
For each event, state:
- the activity ID and description;
- planned start and finish dates in the accepted baseline;
- actual or restricted dates during the event;
- the predecessor and successor relationships that matter;
- the workfront, crew, material, or access constraint;
- the milestone or completion date allegedly moved; and
- the contemporaneous record supporting each fact.
An event may consume float without delaying completion, or delay a non-critical activity while another path controls the finish date. Explain the actual effect rather than treating every lost workday as compensable delay.
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Show critical-path or milestone impact
Where the contract or governing law requires it, demonstrate that the event affected the critical path and delayed completion of the whole works or a contractual milestone. Compare the accepted baseline with the schedule update covering the event. A clear narrative should state what the path was before the event, what changed, when the affected work could resume, and how the change moved the relevant finish date.
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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchUse contemporaneous updates and activity-level records to distinguish an owner direction, access restriction, late information, or other qualifying cause from unrelated productivity loss, contractor-responsible work, or a later event. If the record cannot establish a completion effect, claim the documented disruption or cost only to the extent the contract permits and avoid overstating delay days.
Separate time entitlement from money entitlement
A contract may grant additional time under one test and additional cost under another. For example, an event might justify a time adjustment but exclude certain overheads, or permit cost recovery only when the owner’s breach or a specified instruction is proven. State the clause or legal basis for each requested remedy separately.
4. Substantiate extra costs independently
Prepare the money claim as an itemized analysis, not as a percentage added to the contract value. For every amount, identify the period, cost category, source record, causal link to the event, and whether the amount is incurred or estimated.
| Cost category | Records to assemble | Required explanation |
|---|---|---|
| Additional site labor | Payroll, time sheets, crew allocations, daily reports, and approved labor rates | Which personnel worked longer or differently because of the event, on which dates, and how unrelated hours were excluded |
| Equipment and plant | Equipment logs, operating or standby hours, ownership or rental invoices, and allocation calculations | Why the equipment was retained, idle, or reassigned and the contract basis for the rate used |
| Materials and deliveries | Purchase orders, invoices, delivery tickets, storage records, and return or replacement documentation | How the event caused extra handling, storage, reordering, escalation, or waste |
| Subcontractor costs | Subcontractor notices, certified records, invoices, payroll, equipment logs, and payment evidence | How the subcontractor amount relates to the same event and avoids duplicate recovery |
| On-site and off-site overhead | Accounting ledgers, project cost reports, time-based allocations, and proof of extended project duration | Which additional period and resources were required and why the allocation method is appropriate |
| Financing or other time-related costs | Loan or facility records, interest calculations, payment history, and project cash-flow evidence | The contractual or legal basis and the direct connection to the qualifying delay |
| Claim preparation or lost opportunity | Actual invoices, internal time records, and supporting financial evidence | Whether the contract allows the category and whether the amount is actually incurred rather than speculative |
NSW procurement guidance describes prolongation claims as additional time-related costs associated with a qualifying delay. Its examples include on-site and off-site overheads, subcontractor delay costs, financing costs, claim-preparation costs, and lost profit opportunity. Those are examples of possible categories, not blanket entitlements; contract wording and governing law control recoverability.
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Label each line as incurred, committed, or estimated. Support incurred amounts with source records and explain the calculation for estimates. Update forecasts as the event ends or records become available. Do not include ordinary project costs, duplicated subcontractor amounts, unsupported percentages, or costs that would have occurred without the event.
Show the causal calculation
A reviewer should be able to trace each amount from the event chronology to a schedule effect and then to a ledger or invoice. For example: access was unavailable from 3 to 8 May; the framing crew and rented lift could not work in the affected area; the approved resequencing kept the resources on site; payroll and equipment logs show the additional hours; the invoice and allocation worksheet produce the claimed amount. If any link is missing, identify the limitation instead of presenting the figure as proven.
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5. Document mitigation and resequencing
Contracts and governing law commonly require reasonable efforts to avoid or reduce delay and cost. Record both the options considered and the action taken.
Capture available alternatives
- proposed resequencing or work on another available front;
- requests for information, access, decisions, or substitute materials;
- crew or equipment redeployment;
- revised delivery or inspection arrangements;
- temporary works or other practical measures authorized by the contract; and
- directions that prevented or limited a proposed mitigation step.
For each measure, record when it was proposed, who decided, the expected time and cost effect, and the result. A rejected or impossible mitigation option should be supported by the access, safety, design, procurement, or contractual reason it could not be used.
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Show avoided costs as well as added costs where the calculation requires it. Explain how resequencing changed labor, equipment, supervision, overtime, storage, or subcontractor amounts. This prevents a claim from appearing to seek the cost of an avoidable response.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.6. Assemble an indexed evidence file
Organize the file so another person can test every material assertion quickly. A practical structure is:
- Contract basis: executed agreement, amendments, specifications, notice clauses, and claim instructions.
- Notice record: initial notices, updates, delivery proof, acknowledgements, and responses.
- Chronology: dated event log, daily reports, site diaries, meeting minutes, and witness notes.
- Schedule: accepted baseline, updates, look-aheads, narratives, affected activity analysis, and milestone calculations.
- Event proof: RFIs, instructions, change orders, correspondence, delivery records, photographs, video, weather, and access records.
- Cost proof: cost report, itemized calculation, payroll, equipment logs, invoices, subcontractor records, and allocation worksheets.
- Mitigation: proposals, approvals, rejected alternatives, resequencing records, and evidence of action taken.
- Exhibit index: a numbered list mapping every factual assertion and amount to its supporting record.
Use stable exhibit numbers and file names that include the date, document type, and subject. Keep a version log for schedules and calculations. Preserve originals and restrict editing rights to the working copies.
7. Draft the claim so the reviewer can follow it
A clear submission usually follows the order in which entitlement is tested:
- Contract and notice compliance: identify the clause, triggering event, recipient, delivery method, date, and proof of timely notice.
- Event facts: provide the dated chronology, location, affected work, directions, responses, and contemporaneous conditions.
- Time entitlement: identify the affected activity or milestone, critical-path or completion effect, requested extension, and schedule exhibits.
- Cost entitlement: identify the separate clause or legal basis and explain why the category is recoverable.
- Quantum: show each cost line, period, source record, calculation, and exclusions for unrelated or duplicated amounts.
- Mitigation: describe actions taken, alternatives considered, and any direction or condition that limited mitigation.
- Relief requested: state the requested time adjustment, money amount, continuing-update procedure, and any information still to be finalized.
Use headings and exhibit references that match the index. If an amount or duration remains provisional, say what record will finalize it and continue to comply with the contract’s update requirements.
8. Common failure modes and corrections
“We sent an email, so notice is covered”
An informal email may not satisfy the specified recipient, form, delivery method, content, or deadline. Compare it with the clause, issue a compliant notice if still permitted, and preserve proof of every submission.
“The event lasted ten days, so we get ten days”
Duration at the workface does not establish delay to completion. Identify the affected activity, available float, critical path, milestone, and actual completion effect.
“The schedule proves everything”
A schedule without event records does not prove cause, and event records without schedule analysis do not prove completion delay. Link each schedule change to dated instructions, conditions, and responses.
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“A percentage covers overhead”
A percentage unsupported by project records may include ordinary costs or unrelated work. Show the actual extended period, resources, accounting records, and contract basis for the allocation.
“The final claim can explain it later”
Retrospective reconstruction is weaker than contemporaneous documentation and may miss a notice condition. Maintain the chronology, updates, and cost records while the event is occurring.
“Mitigation is obvious”
Record the options, proposals, approvals, rejected alternatives, and results. The reviewer needs evidence of reasonable action, not an assumption that the contractor acted efficiently.
9. Practical recordkeeping tools
A bound construction daily log book, structured digital diary, or project-management record can help maintain contemporaneous observations. The tool itself does not create entitlement and cannot replace formal notice, accepted schedules, cost records, or exhibits. Its value depends on factual detail, dates, consistency, secure preservation, and compliance with the contract.
10. When to obtain specialist advice
Obtain advice from the contract administrator, delay analyst, quantity surveyor, accountant, or construction lawyer when the claim involves a disputed notice, multiple causes, critical-path analysis, large prolongation costs, public-procurement rules, or a limitation period. Give the adviser the executed contract, notices, schedule files, chronology, cost ledger, and exhibit index; an adviser cannot reliably repair records that were never created.
Quick Recap
Final checklist before submission
- Have you identified the exact contract clause and governing law?
- Did the notice go to the required recipient, in the required form and method, by the contractual deadline?
- Can you prove delivery and show every required update?
- Does the chronology use specific, dated facts rather than conclusions?
- Are the baseline and every relevant schedule update preserved?
- Can you show the affected activity, critical path or milestone, and completion effect?
- Is every cost item tied to a period, category, source record, and causal explanation?
- Have you excluded unrelated, duplicated, speculative, or ordinary project costs?
- Did you document reasonable mitigation and any restriction on it?
- Can an independent reviewer locate the support for every assertion and amount through the exhibit index?
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