A tender received after the time-limit for receipt of tenders will be rejected. The tender reception confirmation provided by e-Submission with the official date and time of receipt of the tender (timestamp) constitutes proof of compliance with the time-limit for receipt of tenders. 

Tenderers must ensure that their submitted tenders contain all the information and documents required by the contracting authority at the time of submission as set out in the procurement documents. 

In order to help tenderers presenting a tender, "A request to participate form" containing a checklist (in point 8) of the documents to be submitted in the e-Submission application is provided with the procurement documents . 

The following documents shall be dated and signed, either by hand or by applying an advanced electronic signature based on a qualified certificate, by an authorised representative of the signatory: 

 Declaration(s) on honour. 

 The tender report (a document generated by e-Submission and listing all the documents included in the tender, to be signed by the tenderer or the group leader in case of a joint tender). 

When the declaration(s) on honour and/or the tender report are signed by hand, a scanned copy must be attached to the tender in e-Submission. The hand-signed originals must be sent by letter at the latest on the first working day following the electronic submission of tender. Only the originals of the declaration on honour and the tender report are to be sent by letter, not other documents. 

After submitting a tender, but before the deadline for receipt of tenders, a tenderer may definitively withdraw its tender, or withdraw it and replace it with a new one$^{3}$. In these cases the tenderer must send a withdrawal/replacement notification, clearly specifying the call for tender's reference and the e-Submission ID of the tender 4 being withdrawn/replaced. The notification must be dated, signed by the tenderer or the group leader in case of a joint tender and sent as follows: 

- if signed using an advanced electronic signature based on a qualified certificate: by e- mail sent before the deadline for receipt of tenders to the contracting authority's e-mail address indicated under Heading I.1 of the contract notice; 

- if signed by hand: by letter, with an advanced scanned copy by e-mail, both sent before the deadline for receipt of tenders to the contracting authority's postal/e-mail address indicated under Heading I.1 of the contract notice. 

All costs incurred for the preparation and submission of tenders are to be borne by the tenderers and will not be reimbursed. 

