FWC conditions of October 2018  Contract number: [ complete ]  II.13.9. Copyright notice for pre-existing rights  II.13.10. Visibility of Union funding and disclaimer  II.14. FORCE MAJEURE  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.  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. 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: 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.  V  is the price of the relevant purchase or deliverable or  result ;  II.15. LIQUIDATED DAMAGES  II.15.1. Delay in delivery  II.14.3 The parties must take all necessary measures to limit any damage due to  force majeure .  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.14.1 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. 