General principles
Article 30
1. The contracting authority or contracting entity shall have the freedom to organise the procedure leading to the choice of concessionaire subject to compliance with this Directive. 2. The design of the concession award procedure shall respect the principles laid down in Article 3. In particular during the concession award procedure, the contracting authority or contracting entity shall not provide information in a discriminatory manner which may give some candidates or tenderers an advantage over others. 3. Member States shall take appropriate measures to ensure that in the performance of concession contracts economic operators comply with applicable obligations in the fields of environmental, social and labour law established by Union law, national law, collective agreements or by the international environmental, social and labour law provisions listed in Annex X. 4. The Commission shall be empowered to adopt delegated acts in accordance with Article 48 to amend the list in Annex X, where necessary, to add new international agreements that have been ratified by all Member States or where the existing international agreements referred to are no longer ratified by all Member States or they are otherwise changed, for instance in respect of their scope, content or denomination.