General Administrative and Submission Clauses 3.4.  Physical or virtual data rooms  3.5.  Clarification following the submission of tenders  3.6.  Presentations  The `Terms of Reference`,  point 1.2  may provide for a  physical  or  virtual data room,  if required  by the subject matter of the procurement, subject to the Tenderer’s prior signature of confidentiality  and non-disclosure agreements.  Where information or documentation contained in a tender is or appears to be incomplete or  erroneous or where specific documents are missing, EIB may request the Tenderer concerned to  submit, supplement, clarify or complete the relevant information or documentation within an  appropriate lime limit. EIB shall ensure that such requests are made in full compliance with the  principles of equal treatment and transparency.  Without prejudice to the preceding paragraph, if, after the deadline for submission of tenders, a  clarification is needed by EIB or if obvious clerical errors in the tender need to be corrected, EIB may  contact the Tenderer concerned, although such contacts may not lead to any alterations of the terms  of the submitted tender.  Only in the case of a negotiated procedure, competitive dialogue or competitive procedure with  negotiation as well as in procurement procedures below the Directive threshold (as regularly  updated), the EIB may negotiate with all the tenderers the offers they have submitted, in order to  adapt them to the requirements set out in the contract notice, `Terms of Reference` or any additional  document in order to find the tender offering best value for money. During negotiations equal  treatment of all Tenderers will be ensured.  If foreseen in the ‘Terms of Reference’ and in accordance with the objective criteria defined therein,  Tenderers having passed the exclusion and selection stage, may be invited to make an oral  a) Where a  physical data room  is used, it will be made available to Tenderers to facilitate  access to information that is not publicly available and that Tenderers may find useful for  preparing the technical and financial offer. Depending on the sensitivity of the information  provided the access of attendees per Tenderer will be restricted to the number indicated in  point 1.2 of the `Terms of Reference`. The access of third parties (for example  subcontractors) is prohibited. Attendees will not be permitted to take copies in any form of  the data made available to them. b) Where a  virtual data room  is used, it will be made available upon specific request by the  Tenderer to access all existing and necessary technical or confidential data that Tenderers  may find useful for preparing the technical and financial offer. The virtual data room is the  computerized online platform and will be accessible to the Tenderers who register online and  sign the Undertaking of confidentiality and Non-disclosure. Once the Tenderer has signed  such Undertaking of confidentiality and Non-disclosure and sent back to the following  address CS-procurement@eib.org the Tenderer will be provided by return with a link and  granted access to the virtual data room. The information in the virtual data room is provided  to the Tenderer solely and exclusively for the purpose of preparing a Tender. The information  cannot be used totally or partially, directly or indirectly, for any other purpose, unless the EIB  gives its prior written authorisation. The Tenderers are not authorised to copy, print or  distribute none of the documents/data/drawings or any other information from virtual data  room.  Last updated: June 2020 Page 6 of 21 