9. MODIFICATIONS TO TENDER DOCUMENTS  TENDER PREPARATION  10.  LANGUAGE OF TENDERS  11.  CONTENT AND PRESENTATION OF TENDER  9.1. The contracting authority may amend the tender documents by publishing modifications up to 11  days before the deadline for submitting tenders. 9.2. Each modification published will constitute a part of the tender documents and will be published  on TED eTendering accessible from the F&T portal at https://ec.europa.eu/info/funding- tenders/opportunities/portal/screen/home  and  the  Contracting  Authority’s  web  site  at http://www.ipa.gov.tr.  9.3. The contracting authority may, as necessary and in accordance with Clause 18, extend the  deadline for submitting tenders to give tenderers sufficient time to take modifications into  account when preparing their tenders.  10.1.  The tender and all correspondence and documents related to the tender exchanged by the  tenderer and the contracting authority must be written in the language of the procedure, which  is English. All correspondence relating to payments, including invoices and interim and final  payment certificates, must also be sent to the contracting authority in English.  11.1.  Tenders must satisfy the following conditions:  11.1.1.  Tenders must comprise the documents and information in Clause 12 below.  11.1.2.  The tender must be signed on behalf of the tenderer/joint venture/consortium by a person  or persons duly authorised to do so, empowered by power of attorney submitted in  accordance with Form 4.3 in Volume 1, Section 4 of the tender dossier.  11.1.3. The relevant pages of the documents specified in Clause 12 must be signed as indicated.  11.1.4. The tenderer must provide all documents required by the tender dossier. All such  documents, without exception, must comply strictly with these conditions and provisions  and contain no amendments made by the tenderer. Tenders which do not comply with the  requirements of the tender dossier may be rejected.  11.2. The works are divided into 2 (two) lots. The tenderer may submit a tender for several or all of the lots.  11.2.1.  Each lot will form a separate contract and the quantities indicated for different lots will  be indivisible. The tenderer must offer the entire quantity or quantities indicated for each  lot. Under no circumstances will tenders for part of the quantities required be taken into  consideration.  Page 7 of 23  August 2020 d4b_itt_en  10.2.  If supporting documents are not written in one of the official languages of the European  Union, a translation into the language of the call for tender must be attached. Where the  documents are in an official language of the European Union other than English, it is  strongly recommended to provide a translation into the language of the call for tenders, in  order to facilitate the evaluation of the documents. 