‘Supplier portal’ : the e-PRIOR portal, which allows the contractor to exchange electronic business documents, such as invoices, through a graphical user interface; its main features can be found in the supplier portal overview document available on: http://ec.europa.eu/dgs/informatics/supplier_portal/doc/um_supplier_portal_overview.pdf 

## II.2. ROLES AND RESPONSIBILITIES IN THE EVENT OF A JOINT TENDER 

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. 

## II.3. SEVERABILITY 

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.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 contracts 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. 

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 $^{3}$. 

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. 

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. 

