II.13 INTELLECTUAL PROPERTY RIGHTS  II.13.1 Ownership of the rights in the results  II.13.2 Licensing rights on pre-existing materials  25  Where  Implementation of the FWC  requires that the contractor uses  Pre-existing materials  belonging  to the contracting authority, the contracting authority may request that the contractor signs an  adequate licence agreement. Such use by the contractor will not entail any transfer of rights to the  contractor and is limited to the needs of this FWC.  The payment of the price as set out in the specific contracts is deemed to also include any fees payable  to the contractor in relation to the licensing of  Pre-existing rights by the contracting authority,  including for all forms of exploitation and of use of the  Results .  The licensing of  Pre-existing rights  to the contracting authority under this FWC covers all territories  worldwide and is valid for the duration of intellectual property rights protection.  All pre-existing rights are licensed to the Contracting Authority from the moment the results are  delivered and approved by the contracting authority.  (b) if the result is a "document" such as a report or a study, and it is meant to be published, the  existence of pre-existing materials in the result may not prevent the publication of the document, its  translation or its "reuse", it being understood however that the "reuse" may only be made of the result  as a whole and not of the pre-existing materials taken separately from the result; for the sake of this  provision, "reuse" and "document" have the meaning given by the Commission Decision of 12  December 2011 on the reuse of Commission documents (2011/833/EU).  (a) the pre-existing rights can be sub-licensed by the contracting authority to persons and entities  working for it or cooperating with it, including contractors and subcontractors, whether legal or natural  persons, but only for the purpose of their mission for the contracting authority; The contractor licenses the  Pre-existing rights  on a royalty-free, non-exclusive and irrevocable basis  to the Contracting Authority, which may use the  Pre-existing materials  for all the modes of exploitation  set out in this FWC or in specific contracts. Unless otherwise agreed, the licence is non-transferable  and cannot be sub-licensed, except as provided hereafter:  Unless provided otherwise in the special conditions, the Contracting Authority does not acquire  ownership of  Pre-existing rights  under this FWC. The payment of the price includes any fees payable to the contractor about the acquisition of  ownership of rights by the Contracting Authority including for all forms of exploitation and of use of  the  Results .  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 acquired rights as stipulated in this FWC. The  Contracting Authority acquires all the rights from the moment the contractor has created the results  The Contracting Authority acquires irrevocably worldwide ownership of the  Results and of all  intellectual property rights on the newly created materials produced specifically for the Contracting  Authority under the FWC and incorporated in the results, without prejudice however to the rules  applying to pre-existing rights on pre-existing materials, as per Article II.13.2.