Contract number:  Service contract conditions of December 2018 The contractor must take all appropriate measures to minimise costs, prevent damage and  cancel or reduce its commitments. Within 60 days of the date of termination, the contractor must submit any report, deliverable  or  result and any invoice required for services that were provided before the date of  termination. In the case of joint tenders, the contracting authority may terminate the contract with each  member of the group separately on the basis of points (d), (e), (g), (k) and (l) of Article  II.18.1, under the conditions set out in Article II.11.2.  Invoices must contain the contractor’s (or leader’s in the case of a joint tender) identification  data, the amount, the currency and the date, as well as the contract reference.  Invoices must indicate the place of taxation of the contractor (or leader in the case of a joint  tender) for value added tax (VAT) purposes and must specify separately amounts not  including VAT and amounts including VAT.  The contracting authority is exempt from all taxes and duties, including VAT, in accordance  with Articles 3 and 4 of the Protocol 7 of the Treaty on the Functioning of the European  Union on the privileges and immunities of the European Union.  The contractor (or leader in the case of a joint tender) must complete the necessary formalities  with the relevant authorities to ensure that the supplies and services required for  performance  of the contract  are exempt from taxes and duties, including VAT.  If provided for in the special conditions, the contractor (or leader in the case of a joint tender)  submits invoices in electronic format if the conditions regarding electronic signature specified  by Directive 2006/112/EC on VAT are fulfilled, i.e. using a qualified electronic signature or  through electronic data interchange. A party may request a price revision in writing no later than three months before the  anniversary date of entry into force of the contract. The other party must acknowledge the  request within 14 days of receipt. At the beginning of the second and every following year of the contract, each price may be  revised upwards or downwards at the request of one of the parties.  Prices are fixed and not subject to revision during the first year of the contract.  If a price revision index is provided in Article I.4.2, this Article applies to it. Reception of invoices by standard format (pdf) or email is not accepted. II.19.2. E-invoicing  II.20. PRICE REVISION  II.19. INVOICES, VALUE ADDED TAX AND E-INVOICING  II.19.1. Invoices and value added tax  34 