After the award, ECDC will sign the contract either with all members of the group, or with the leader on behalf of all members of the group, authorised by the other members via powers of attorney. 

Any change in the composition of the group during the procurement procedure may lead to the rejection of the tender. Any change in the composition of the group after the signature of the contract may lead to the termination of the contract. 

## 1.4 Subcontracting 

Subcontracting is permitted but the contractor will retain full liability towards ECDC for performance of the contract as a whole. 

If subcontracting is envisaged, the tenderer must clearly indicate in the tender which parts of the work will be subcontracted. 

If the tenderer relies on the subcontractors to fulfil the selection criteria (see section 3.2 Selection criteria), these subcontractors must provide a statement declaring their undertaking to collaborate with the tenderer in case of award, and the resources that they will put at the tenderers disposal for the performance of the contract. 

If the tenderer relies on the capacity of a subcontractor for economic and financial capacity, ECDC may require the third party to be jointly liable for the performance of the contract. 

Tenderers are required to identify all subcontractors whose share of the contract is above 10 % and whose capacity is necessary to fulfil the selection criteria. 

During contract performance, the change of any subcontractor identified in the tender or additional subcontracting will be subject to prior written approval of ECDC. 

Where no subcontractor is given, the work will be assumed to be carried out directly by the tenderer. 

## 1.5 Division into lots 

This contract is not divided into lots. The tenderer must be in a position to provide all the services requested. 

## 1.6 Structure and content of the tender 

The tenders must include the following: 

- Part A: Identification of the tenderer 

- Part B: Non-exclusion (see section 3.1 Verification of non-exclusion). 

- Part C: Selection (see section 3.2 Selection criteria) 

- Part D: Technical tender (see section 3.3 Award) 

- Part E: Financial tender 

All tenders must contain a financial tender to be submitted according to the form in section 4. Annexes . 

The tenderer's attention is drawn to the following points: 

