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have provided false information, the award will be considered null and void. In such a case, the contracting authority may award the tender to the next lowest tenderer or cancel the tender procedure. 

The contracting authority may waive the obligation of any candidate or tenderer to submit the documentary evidence referred to above if such evidence has already been submitted for the purposes of another procurement procedure, provided that the issue date of the documents does not exceed one year and that they are still valid. In this case, the candidate or tenderer must declare on his/her honour that the documentary evidence has already been provided in a previous procurement procedure and confirm that his/her situation has not changed. 

Documentary evidence of the financial and economic capacity and/or of the technical and professional capacity according to the selection criteria specified in the additional information about the contract notice shall be submitted. (See further Section 2.6.11. of the practical guide). 

By submitting a tender, each tenderer accepts to receive notification of the outcome of the procedure by electronic means. Such notification shall be deemed to have been received on the date upon which the contracting authority sends it to the electronic address referred to in the offer. 

22.4 The contracting authority reserves the right to vary quantities specified in the tender by +/- 100 % at the time of contracting and during the validity of the contract. The total value of the supplies may not, as a result of the variation rise or fall by more than 25 % of the original financial offer in the tender. The unit prices quoted in the tender shall be used. 

22.5 Within 30 days of receipt of the contract signed by the contracting authority, the selected tenderer must sign and date the contract and return it, with the performance guarantee (if applicable), to the contracting authority. On signing the contract, the successful tenderer will become the contractor and the contract will enter into force. 

22.6 If it fails to sign and return the contract and any financial guarantee required within 30 days after receipt of notification, the contracting authority may consider the acceptance of the tender to be cancelled without prejudice to the contracting authority’s right to seize the guarantee, claim compensation or pursue any other remedy in respect of such failure, and the successful tenderer will have no claim whatsoever on the contracting authority. 

22.7 The performance guarantee referred to in the general conditions is set at 10% of the amount of the contract and must be presented in the form specified in the annex to the tender dossier. It will be released within 45 days of the issue of the final acceptance certificate by the contracting authority, except for the proportion assigned to after-sales service. 

## 23. Tender guarantee 

The tender guarantee referred to in Article 11 above is set at for each lot with the amount stated in the table below  and must be presented in the form specified in the annex to the tender dossier. It must remain valid for 45 days beyond the period of validity of the tender. Tender guarantees provided by tenderers who have not been selected will be returned together with the information letter that the tenderer has been unsuccessful. The tender guarantee of the successful tenderer will be released on signing of the contract, once the performance guarantee has been submitted. 

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