Contract number: [ complete ]  Service contract conditions of December 2018  The payment of the price includes any fees payable to the contractor about the acquisition of  ownership of rights by the Union including for all modes of exploitation and of use of the  results .  Unless provided otherwise in the special conditions, the Union does not acquire ownership of  pre-existing rights  under this contract. The contractor licenses the  pre-existing rights on a royalty-free, non-exclusive and  irrevocable basis to the Union, which may use the  pre-existing materials  for all the modes of  exploitation set out in this contract or in specific contracts. Unless otherwise agreed, the  licence is non-transferable and cannot be sub-licensed, except as provided hereafter:  (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 Union; (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).  All  pre-existing rights are licensed to the Union from the moment the  results are delivered  and approved by the contracting authority. The licensing of  pre-existing rights to the Union under this contract covers all territories  worldwide and is valid for the duration of intellectual property rights protection.  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 to the Union,  including for all forms of exploitation and of use of the  results .  Where  implementation of the contract  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 contract.  The Union acquires the following exclusive rights: (a) reproduction: the right to authorise or prohibit direct or indirect, temporary or permanent  reproduction of the  results  by any means (mechanical, digital or other) and in any form,  in whole or in part; (b) communication to the public: the exclusive right to authorise or prohibit any display,  performance or communication to the public, by wire or wireless means, including the  making available to the public of the  results  in such a way that members of the public  23  Exclusive rights  II.13.3. Licensing rights on pre-existing materials  II.13.2.