2014/24/EU 20 , compliance with data protection obligations resulting from Regulation (EU)  2016/679 21  and Regulation (EU) 2018/1725. 22 The contractor bears the cost of replacing its  Personnel  and is responsible for any delay in  providing the services resulting from the replacement of  Personnel .  Any communication of information, notices or documents under the FWC must:  20 OJ L 94 of 28.03.2014, p. 65  21 Regulation (EU) 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of natural  persons with regard to the processing of personal data and on the free movement of such data, and repealing Directive 95/46/EC  (General  Data  Protection  Regulation),  OJ  L  119,  4.5.2016,  https://eur-lex.europa.eu/legal- content/EN/TXT/PDF/?uri=CELEX:32016R0679&from=EN 22 Regulation (EU) 2018/1725 of 23 October 2018 on the protection of natural persons with regard to the processing of  personal data by the Union institutions, bodies, offices and agencies and on the free movement of such data, and repealing  Regulation  (EC)  No  45/2001  and  Decision  No  1247/2002/EC,  OJ  L  295/39,  21.11.2018,  https://eur- lex.europa.eu/legalcontent/EN/TXT/PDF/?uri=CELEX:32018R1725&from=EN  18  (c) be made using the relevant communication details set out in Article I.8; and  (b) bear the FWC number and, if applicable, the specific contract number;  (a) be made in writing in paper or electronic format in the language of the contract; II.4.10 The contractor must record and report to the contracting authority any problem that  affects its ability to provide the services. The report must describe the problem, state when it  started and what action the contractor is taking to resolve it.  (b) has caused disruption at the premises of the contracting authority.  (a) does not have the expertise required to provide the services; or  II.4.9  At the contracting a uthority’s reasoned request, the contractor must replace any member of  Personnel  who:  II.4.8  The contractor must ensure that the  Personnel implementing the FWC and any future  replacement personnel possess the professional qualifications and experience required to  provide the services, as the case may be on the basis of the selection criteria set out in the  tender specifications.  (b) their participation in providing the services does not result in any employment or  contractual relationship with the contracting authority.  (a) they may not accept any direct instructions from the contracting authority; and  II.4.7  The contractor is responsible for the  Personnel  who carry out the services and exercises its  authority over its  Personnel  without interference by the contracting authority. The contractor  must inform its  Personnel  that:  II.4.6  The contractor must not present itself as a representative of the contracting authority and must  inform third parties that it is not part of the European public service.  II.4.5  All periods specified in the FWC are calculated in calendar days, unless otherwise specified. II.4.4  The contractor must obtain any permit or licence required in the State where the services are  to be provided.  II.5.1 Form and means of communication  II.5 COMMUNICATION BETWEEN THE PARTIES 