## II.13.9. Copyright notice for pre-existing rights 

When the contractor retains pre-existing rights  on parts of the results , reference must be inserted to that effect when the result  is used as set out in Article I.10.1, with the following disclaimer: ‘© — year — European Union. All rights reserved. Certain parts are licensed under conditions to the EU’, or with any other equivalent disclaimer as the contracting authority may consider best appropriate, or as the parties may agree on a case-by-case basis. This does not apply where inserting such reference would be impossible, notably for practical reasons. 

## II.13.10. Visibility of Union funding and disclaimer 

When making use of the results , the contractor must declare that they have been produced under a contract with the Union and that the opinions expressed are those of the contractor only and do not represent the contracting authority’s official position. The contracting authority may waive this obligation in writing or provide the text of the disclaimer. 

## II.14. FORCE MAJEURE 

II.14.1 If a party is affected by force majeure , it must immediately notify the other party, stating the nature of the circumstances, their likely duration and foreseeable effects. 

II.14.2 A party is not liable for any delay or failure to perform its obligations under the FWC if that delay or failure is a result  of force majeure . If the contractor is unable to fulfil its contractual obligations owing to force majeure , it has the right to remuneration only for the services actually provided. 

II.14.3 The parties must take all necessary measures to limit any damage due to force majeure . 

## II.15. LIQUIDATED DAMAGES 

## II.15.1. Delay in delivery 

If the contractor fails to perform its contractual obligations within the applicable time limits set out in this FWC, the contracting authority may claim liquidated damages for each day of delay using the following formula: 

0.3 x ( V/d ) 

where: 

V  is the price of the relevant purchase or deliverable or result ; 

d  is the duration specified in the relevant specific contract for delivery of the relevant purchase or deliverable or result  or, failing that, the period between the date specified in Article I.4.2 and the date of delivery or performance specified in the relevant specific contract, expressed in days. 

Liquidated damages may be imposed together with a reduction in price under the conditions laid down in Article II.16. 

