General Administrative and Submission Clauses In order to ensure punctual hand delivery, the Tenderer is strongly advised to take into account the  eventual waiting time for the actual handover of its tender to the EIB’s reception desk in charge of  taking delivery. EIB may not be held liable for any delays incurred by the Tenderer when in EIB’s  premises; the Tenderer alone is responsible for ensuring that its tender is delivered on time. The EIB may at its own discretion require Tenderers to submit their tenders electronically via:  https://etendering.ted.europa.eu/ by stating so in  point 1.2  of the `Terms of Reference`. In such  case, the provisions set in the foregoing  points 4.3  to  4.4.2  shall be superseded by those stated in  Appendix I  to these General Administrative and Submission Clauses.  All documents submitted by the Tenderer shall automatically become the property of EIB and are  deemed confidential.  Tenders shall be submitted strictly in accordance with the conditions set out in the `Terms of  Reference` and its annexes. If any other conditions are attached to or referred to in the Tenderer’s  tender, the Tenderer should declare that such conditions are entirely withdrawn. Except in the case of e-Submission (see point 4.5 and Appendix 1), tenders must be drawn up on  paper as well as an electronic version clearly marked with the name of the Tenderer and EIB’s  reference number. Paper version and electronic version shall be identical. In case of discrepancies  the Tenderer’s statement made in the paper version shall prevail. The period of validity of the tender, during which the Tenderer may not modify the terms of the tender  in any respect, must be at least 6 (six) months following the deadline for dispatching tenders. The  successful Tenderer  must maintain its offer for a further 4 (four) months from the date of the written  notification of EIB’s intention to award it the contract.  By submitting a tender in response to this call for tenders, the Tenderers:  EIB reserves the right:  Last updated: June 2020 Page 9 of 21   must not modify any of the Procurement Documents provided by EIB in the context of a  procurement procedure, as they are solely made available to Tenderers to insert the required  information.  must not pass on documents relating to a procurement procedure to third parties, except  where the EIB has given its prior authorisation;   in case Tenderers submit documents of general interest in the context of a procurement  procedure, such documents will form an integral part of the tender;   cannot invoke any error, inaccuracy or omission in their tender to call the contract into  question or to attempt to have it amended;   confirm that they have had the opportunity to gauge the scope and quality of the  services/supplies/works required, as well as identify any possible difficulties;   waive their own terms of business;   accept all terms and conditions of the Procurement Documents, including the EIB Model  Contract;  4.5.  Electronic submission of tenders (e-Submission)  4.6.  Implications of submitting a tender 