AUTHORITY TO MODIFY. No modification or change in this Contract, no waiver of any of its provisions or any additional contractual relationship of any kind with the Contractor shall be valid and enforceable against UNESCO unless provided by an amendment to this Contract signed by the authorized official of XXXXXX.
Appears in 4 contracts
Samples: unevoc.unesco.org, en.unesco.org, en.unesco.org
AUTHORITY TO MODIFY. No modification or change in this ContractAgreement, no waiver of any of its provisions or any additional contractual relationship of any kind with the Contractor Partner shall be valid and enforceable against UNESCO unless provided by an amendment to this Contract Agreement signed by the authorized official of XXXXXX.
Appears in 1 contract
Samples: en.unesco.org
AUTHORITY TO MODIFY. No modification or change in this Contract, no waiver of any of its provisions or any additional contractual relationship of any kind with the Contractor shall be valid and enforceable against UNESCO unless provided by an amendment to this Contract signed by the authorized official of XXXXXXUNESCO.
Appears in 1 contract
Samples: www.unesco.org