## I.5.2 Price revision index 

 Price revision is determined by the formula set out in Article II.20 and using the trend in the ‘European index of consumer prices’ (EICP) of the harmonised indices of consumer prices (HICP) published for the first time in Eurostat’s monthly ‘Data in Focus’ publication available on the website: http://www.ec.europa.eu/eurostat/. 

## I.5.3 Reimbursement of expenses 

Reimbursement of expenses is not applicable to this FWC. 

## I.6. PAYMENT ARRANGEMENTS 

## I.6.1 Pre-financing 

Pre-financing is not applicable to this FWC. 

## I.6.2 Interim payments 

1. The contractor (or leader in the case of a joint tender) may claim an interim payment up to 75% as stipulated in the relevant specific contract in accordance with Article II.21.6. 

The contractor (or leader in the case of a joint tender) must send an invoice in paper format or via e-PRIOR  for the interim payment as provided for in the tender specifications, accompanied by the following: 

• for the deliverables covered by the interim payment, a list of all pre-existing rights  to the results  or parts of the results  or a declaration stating that there are no such , as provided for in Article II.13.4; 

• the deliverables and other documents specified in the specific contract or order form; 

2. The contracting authority must approve any submitted documents or deliverables and pay within 60 days from receipt of the invoice. 

3. If the contracting authority has observations to make, it must send them to the contractor (or leader in the case of a joint tender) and suspend the time limit for payment in accordance with Article II.21.7. The contractor (or leader in case of a joint tender) has 10 days to submit additional information or corrections or a new version of the documents if the contracting authority requires it. 

4. The contracting authority must give its approval and pay within the remainder of the time- limit indicated in point (2.) unless it rejects partially or fully the submitted documents or deliverables. 

## I.6.3 Payment of the balance 

1. The contractor (or leader in the case of a joint tender) may claim the payment of the balance in accordance with Article II.21.6. 

