Contract number: ECHA/2020/724  Restricted  Service contract conditions of December 2018  the time limits to submit additional information or corrections or a new version of the documents  or deliverables if the contracting authority requires it. Suspension takes effect on the date the contracting authority sends the  notification . The  remaining payment period resumes from the date on which the requested information or revised  documents are received or the necessary further verification, including on-the-spot checks, is  carried out. Where the suspension period exceeds two months, the contractor (or leader in the  case of a joint tender) may request the contracting authority to justify the continued suspension.  Where the payment periods have been suspended following rejection of a document referred to  in the first paragraph of this Article and the new document produced is also rejected, the  contracting authority reserves the right to terminate the contract in accordance with  Article II.18.1(c) . On expiry of the payment periods specified in Article I.5, the contractor (or leader in the case of  a joint tender) is entitled to interest on late payment at the rate applied by the European Central  Bank for its main refinancing operations in euros (the reference rate) plus eight points. The  reference rate is the rate in force, as published in the C series of the  Official Journal of the  European Union,  on the first day of the month in which the payment period ends.  Suspension of the payment period as provided for in Article II.21.7 is not considered as giving  rise to late payment. Interest on late payment covers the period running from the day following the due date for  payment up to and including the date of payment as defined in Article II.21.1.  However, when the calculated interest is EUR 200 or less, it must be paid to the contractor (or  leader in the case of a joint tender) only if it requests it within two months of receiving late  payment.  In addition, the contracting authority reimburses travel outside Union territory if it has given its  prior written approval for the expenses.  II.21.8. Interest on late payment  II.22. REIMBURSEMENTS  II.22.1 If provided for in the special conditions or in the tender specifications, the  contracting authority must reimburse expenses directly connected with the provision of  the services either when the contractor provides it with supporting documents or on the  basis of flat rates.  II.22.2  The contracting authority reimburses travel and subsistence expenses on the basis  of the shortest itinerary and the minimum number of nights necessary for overnight stay  at the destination.  II.22.3 The contracting authority reimburses travel expenses as follows:  (a)  travel by air: up to the maximum cost of an economy class ticket at the time of the  reservation;  (b)  travel by boat or rail: up to the maximum cost of a first class ticket;  (c)  travel by car: at the rate of one first class rail ticket for the same journey and on the  same day;  II.22.4  The contracting authority reimburses subsistence expenses on the basis of a daily  subsistence allowance as follows:  (a) for journeys of less than 200 km for a return trip, no subsistence allowance is payable;  (b) the daily subsistence allowance is payable only on receipt of supporting documents  proving that the person concerned was present at the destination;  30 