A Contract Addendum Letter is utilized when parties to an existing agreement need to make changes without drafting an entirely new contract. This document type is commonly used across various sectors in the United States when circumstances require modification of original terms, such as price adjustments, deadline extensions, or scope changes. The addendum must comply with both federal and state contract laws and typically includes references to the original agreement, specific modifications, effective dates, and confirmation that all other terms remain unchanged. It provides a clear audit trail of contractual changes while maintaining the integrity of the original agreement.
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1. Reference to Original Agreement: Details of the original contract being modified including date, parties, and contract title
2. Purpose Statement: Clear explanation of why the addendum is needed and what changes are being made
3. Specific Changes: Detailed description of modifications to the original agreement, including any clauses being added, modified, or deleted
4. Effective Date: When the modifications take effect and any implementation timeline
5. Ratification Statement: Confirmation that all other terms of the original agreement remain unchanged and in full force and effect
1. Consideration Statement: Statement of consideration if new consideration is provided for the modification
2. Interim Arrangements: Temporary provisions or transition arrangements during implementation period
3. Regulatory Compliance: Additional provisions ensuring compliance with specific regulations or laws
1. Revised Schedules: Updated versions of schedules from original agreement affected by the changes
2. Supporting Documentation: Any relevant documentation supporting or explaining the modifications
3. Authorization Documents: Corporate resolutions or other authorization documents if required for the modification
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