Contract no: [complete]  EC - FWC services Dec 2018   ‘Supplier portal’ : the  e-PRIOR  portal, which allows the contractor to exchange electronic business  documents, such as invoices, through a graphical user interface.  In the event of a joint tender submitted by a group of economic operators and where the group does not  have legal personality or legal capacity, one member of the group is appointed as leader of the group. Each provision of this FWC is severable and distinct from the others. If a provision is or becomes illegal,  invalid or unenforceable to any extent, it must be severed from the remainder of the FWC. This does  not affect the legality, validity or enforceability of any other provisions of the FWC, which continue in full  force and effect. The illegal, invalid or unenforceable provision must be replaced by a legal, valid and  enforceable substitute provision which corresponds as closely as possible with the actual intent of the  parties under the illegal, invalid or unenforceable provision. The replacement of such a provision must  be made in accordance with Article II.11. The FWC must be interpreted as if it had contained the  substitute provision as from its entry into force.  II.2. ROLES AND RESPONSIBILITIES IN THE EVENT OF A JOINT TENDER  II.3. SEVERABILITY  II.4. PROVISION OF SERVICES  II.4.1  Signature of the FWC does not guarantee any actual purchase. The contracting authority is  bound only by  specific contract s implementing the FWC.  II.4.2  The contractor must provide services of high quality standards, in accordance with the state of  the art in the industry and the provisions of this FWC, in particular the tender specifications and  the terms of its tender. Where the Union has the right to make modifications to the  result s, they  must be delivered in a format and with the necessary information which effectively allow such  modifications to be made in a convenient manner. II.4.3  The contractor must comply with the minimum requirements provided for in the tender  specifications. This includes compliance with applicable obligations under environmental, social  and labour law established by Union law, national law and collective agreements or by the  international environmental, social and labour law provisions listed in Annex X to Directive  2014/24/EU 4 , compliance with data protection obligations resulting from Regulation (EU)  2016/679 5  and Regulation (EU) 2018/1725 6 .  II.4.4  The contractor must obtain any permit or licence required in the State where the services are to  be provided.  II.4.5 All periods specified in the FWC are calculated in calendar days, unless otherwise specified. 4 OJ L 94 of 28.03.2014, p. 65  5 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, OJ L 119, 4.5.2016, p. 1, https://eur-lex.europa.eu/legal- content/EN/TXT/?uri=uriserv:OJ.L_.2016.119.01.0001.01.ENG 6 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/legal-content/EN/TXT/PDF/?uri=CELEX:32018R1725&from=EN  14