Reference
Clear reference to the original contract number, date, and parties so the amendment is unambiguously linked to the base agreement.
A signed extension schedule reduces disputes by documenting the scope and terms of the new timeline and any cost or liability changes.
Project owners, general contractors, subcontractors, and project managers commonly complete extension schedules to record agreed schedule changes.
Use this form when authorized representatives must document a change in the contract schedule and preserve an auditable record for payments and claims.
Clear reference to the original contract number, date, and parties so the amendment is unambiguously linked to the base agreement.
Concise statement of which milestones or deliverables change and how those changes affect dependencies across the project schedule.
Document the factual basis for the extension (e.g., weather event, design change, permit delay) to support entitlement determinations.
Itemize any lump-sum adjustments, reimbursable costs, or statements that no cost change is required as part of the extension.
Signature lines for authorized representatives, with printed name, title, date, and witness or notary area if needed.
Incorporate revised schedules, critical-path diagrams, or supporting correspondence as numbered exhibits for clarity.
| Field | Configuration |
|---|---|
| Signer Order | Sequence parties logically for approvals |
| Required Attachments | Attach revised schedule PDF as an exhibit |
| Conditional Fields | Show cost lines only when 'Cost Impact' is not 'No change' |
| Audit Trail | Enable full action logging for legal record |
Choose a platform that supports secure eSignatures, audit trails, and the file formats your team uses.
As required by contract, often within 5–14 days
Submit as soon as cause is known
Allow time for review and counteroffers, often 7–21 days
Set the date when obligations change
Retain executed amendment per retention rules
Project team files cause and proposed dates for review.
Owner or contract admin assesses cost and schedule consequences.
Parties negotiate terms, costs, and any compensatory measures.
Authorized signatures obtained and signed copies distributed to all parties.
| signNow | DocuSign | Adobe Sign | PandaDoc | HelloSign | |
|---|---|---|---|---|---|
| Starting Price | $8/user/mo | $15/user/mo | $14/user/mo | $19/user/mo | $15/user/mo |
| Free Trial | 7-day free trial | Varies by plan | Varies by plan | Varies by plan | Varies by plan |
| Bulk Send | Yes (Business Premium) | Yes | Yes | Yes | No |
| Audit Trail | Yes | Yes | Yes | Yes | Yes |
| HIPAA Compliant | Yes (BAA available) | Yes | Yes | No | No |
Optica used a signed extension to align contractor deliverables with a delayed permit approval.
A regional developer recorded a single amendment for multiple subcontractors to extend project closeout.
The project manager often executes schedule amendments on behalf of a contractor when the contract grants delegated authority. Their signature confirms operational consent but may still require owner approval depending on the agreement's approval matrix.
An owner or client representative with contracting authority signs to accept new dates and any associated financial or performance implications, binding the owner to the amended schedule.