PART 3 TENDER SPECIFICATIONS for LOT 2  Hand written or electronic signature of the consortium leader who submits the tender is not required,  since the signature of the e-Submission ‘Tender Preparation Report’ implies that all included  documents are signed by this party.  Partners in a joint offer assume  joint and several liability  towards the Agency for the performance  of the contract as a whole.  Statements, saying for instance: are thus incompatible with the principle of joint and several liability. The Agency will disregard any  such statement contained in a joint offer, and reserves the right to reject such offers without further  evaluation, because they do not comply with the tendering specifications.  Subcontracting is permitted in the tender but the contractor will retain full liability towards the  Contracting Authority for performance of the contract as a whole. If the tenderer intends to subcontract part of the service, they shall indicate in their offer which part will  be subcontracted and to what extent (% of the total contract value). Tenderers must ensure that Article II.7 of the contract (Annex IV) can be applied to subcontractors.  Tenderers must give an indication of the proportion of the contract that they intend to subcontract.  Tenderers are required to identify all subcontractors.  During contract execution, any change of a subcontractor identified in the tender will be subject to  prior written approval of the Contracting Authority. Tenders must be written in  one of the official languages of the European Union. The working  language of ENISA is English.  Tenders must be written in a clear and concise manner, with continuous page numbering. Since  tenderers will be judged on the content of their written bids, they must make it clear that they are able  to meet the requirements of the specifications/terms of reference.  2  not to be confused with distribution of tasks among the members of the grouping  F-COD-20-T03:  LOT 2  - Provision of infrastructure for Operational Cooperation and exercises page 22 of 32  2.1 GENERAL  2. STRUCTURE AND CONTENT OF THE TENDER  1.4 SUBCONTRACTING  1.3 LIABILITY OF MEMBERS OF A GROUP  -  That more than one contract should be signed if the joint offer is successful -  That one of the partners of the joint offer will be responsible$^{2}$ for only one part of the contract and  another one for the rest, or