 2019  Contract number: [ complete ]  II.10. SUBCONTRACTING  II.11. AMENDMENTS  II.12. ASSIGNMENT  II.13. INTELLECTUAL PROPERTY RIGHTS  II.13.1  Ownership of the rights in the results  The Centre acquires irrevocably worldwide ownership of the  results and of all intellectual  property rights under the FWC. The intellectual property rights so acquired include any rights,  such as copyright and other intellectual or industrial property rights, to any of the  results  and in  all technological solutions and information created or produced by the contractor or by its  subcontractor in  implementation of the FWC . The contracting authority may exploit and use the  in writing to those parties, including subcontractors. At the request of the contracting authority,  the contractor shall provide a document providing evidence of this commitment.  II.10.1  The contractor must not subcontract and have the FWC implemented by third parties  beyond the third parties already mentioned in its tender without prior written  authorisation from the contracting authority.  II.10.2  Even if the contracting authority authorises subcontracting, the contractor remains  bound by its contractual obligations and is solely responsible for the  implementation  of the FWC .  II.10.3  The contractor must ensure that the subcontract does not affect the rights of the  contracting authority under this FWC, particularly those under Articles II.8, II.13 and  II.24.  II.10.4  The contracting authority may request the contractor to replace a subcontractor found  to be in a situation provided for in points (d) and (e) of Article II.18.1. II.11.1 Any amendment to the FWC or a specific contract must be made in writing before all  contractual obligations have been fulfilled. A specific contract does not constitute an  amendment to the FWC.  II.11.2 Any amendment must not make changes to the FWC or a specific contract that might  alter the initial conditions of the procurement procedure or result in unequal treatment  of tenderers or contractors.  II.12.1  The contractor must not assign any of the rights and obligations arising from the FWC,  including claims for payments or factoring, without prior written authorisation from  the contracting authority. In such cases, the contractor must provide the contracting  authority with the identity of the intended assignee. II.12.2  Any right or obligation assigned by the contractor without authorisation is not  enforceable against the contracting authority.  23 