Service providers can be replaced or added when needed upon agreement  by both parties via exchange of e-mails and on condition that the overall  value of this specific contract is not exceeded.  All profiles shall be as defined in the Framework Contract and all service  providers shall meet the requirements of the given profile as defined in the  Framework Contract. The Contractor proposes named service providers by  submitting their CVs to the contracting authority. The agreement of the  Agency will be expressed via e-mail. Following approval by the contracting  authority the named service providers can start to perform under this  Specific Contract.  - an amount of  EUR XXX  per day of actual services rendered, for  XX  days,  i.e. a total of  EUR XXXXX Profile of service provider: ……………………….  [ specify the profile of the service provider in accordance with the  profiles listed in the price list in Annex II to the FWC ]  - an amount of  EUR XXX  per day of actual services rendered, for  XX  days  , i.e. a total of  EUR XXXXX Profile of service provider: ……………………….  [ specify the profile of the service provider in accordance with the  profiles listed in the price list in Annex II to the FWC ]  Payments under the specific contract shall be made in accordance with Articles I.6  and II.21 of the FWC. Payments shall be executed only if the contractor has fulfilled  all his contractual obligations by the date on which the invoice is submitted.  Payment requests may not be made if payments for previous periods have not been  executed as a result of default or negligence on the part of the contractor.  28  5.1  Interim payments ARTICLE 5: PAYMENTS ARTICLE 4: PRICE 4.1  The contracting authority undertakes to pay the contractor, in consideration  for the services rendered under this specific contract:  $^{ }$4.2 The maximum total amount to be paid by the contracting authority under  this specific contract shall be  EUR XXX  [amount in figures] covering all tasks  executed.  4.3.  This amount shall cover all expenditure incurred by the Contractor in  performing this Specific Contract.  4.4  In addition to the amount specified in Article 4.2, travel expenses up to a  maximum amount of EUR [amount in figures and in words] shall be paid  according to the quotation of the Contractor.